Document And Entity Information - shares	6 Months Ended
Document And Entity Information - shares	Jun. 30, 2019	Aug. 09, 2019
Document Information [Line Items]
Entity Registrant Name	LIQUIDMETAL TECHNOLOGIES INC
Entity Central Index Key	0001141240
Trading Symbol	lqmt
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding (in shares)		914,359,124
Entity Shell Company	false
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Title of 12(b) Security	Common Stock

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash	$ 32,195	$ 35,229
Restricted cash	5	5
Trade accounts receivable	80	120
Inventory	87	31
Prepaid expenses and other current assets	200	363
Total current assets	32,567	35,748
Property and equipment, net	10,158	11,767
Patents and trademarks, net	280	322
Other assets	14	14
Total assets	43,019	47,851
Current liabilities:
Accounts payable	93	253
Accrued liabilities	228	270
Deferred revenue	37	31
Total current liabilities	358	554
Long-term liabilities:
Other long-term liabilities	856	856
Total liabilities	1,214	1,410
Shareholders' equity:
Preferred Stock, $0.001 par value; 10,000,000 shares authorized; 0 shares issued and outstanding at June 30, 2019 and December 31, 2018, respectively
Common stock, $0.001 par value; 1,100,000,000 shares authorized; 914,359,124 and 914,206,832 shares issued and outstanding at June 30, 2019 and December 31, 2018, respectively	914	914
Warrants	18,179	18,179
Additional paid-in capital	286,632	286,276
Accumulated deficit	(263,845)	(258,854)
Non-controlling interest in subsidiary	(75)	(74)
Total shareholders' equity	41,805	46,441
Total liabilities and shareholders' equity	$ 43,019	$ 47,851

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	1,100,000,000	1,100,000,000
Common stock, shares issued (in shares)	914,359,124	914,206,832
Common stock, shares outstanding (in shares)	914,359,124	914,206,832

Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue
Revenues	$ 132	$ 55	$ 355	$ 135
Cost of sales	103	61	282	142
Gross profit (loss)	29	(6)	73	(7)
Operating expenses
Selling, marketing, general and administrative	1,275	1,527	2,708	3,112
Research and development	406	644	895	1,254
Impairment of long-lived assets	1,676		1,676
Loss on disposal of fixed assets	5		5
Total operating expenses	3,362	2,171	5,284	4,366
Operating loss	(3,333)	(2,177)	(5,211)	(4,373)
Interest income	109	35	219	68
Net loss and comprehensive loss	(3,224)	(2,142)	(4,992)	(4,305)
Net loss attributable to non-controlling interest	1		1
Net loss and comprehensive loss attributable to Liquidmetal Technologies shareholders	$ (3,223)	$ (2,142)	$ (4,991)	$ (4,305)
Net loss per common share attributable to Liquidmetal Technologies shareholders, basic and diluted (in dollars per share)	$ 0	$ 0	$ (0.01)	$ 0
Number of weighted average shares - basic and diluted (in shares)	914,359,124	909,213,870	914,319,575	909,063,156
Product [Member]
Revenue
Revenues	$ 132	$ 55	$ 355	$ 135
License [Member]
Revenue
Revenues

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operating activities:
Net loss	$ (3,224)	$ (2,142)	$ (4,992)	$ (4,305)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization			562	525
Stock-based compensation			342	547
Impairment of long-lived assets	1,676		1,676
Loss on disposal of fixed assets	5		5
Changes in operating assets and liabilities:
Trade accounts receivable			40	93
Inventory			(56)	(198)
Prepaid expenses and other current assets			163	117
Accounts payable and accrued liabilities			(202)	(155)
Deferred revenue			6	(7)
Net cash used in operating activities			(2,456)	(3,383)
Investing Activities:
Purchases of property and equipment			(597)	(71)
Proceeds from disposal of fixed assets			5
Net cash used in investing activities			(592)	(71)
Financing Activities:
Proceeds from exercise of stock options			14	47
Net cash provided by financing activities			14	47
Net decrease in cash and restricted cash			(3,034)	(3,407)
Cash and restricted cash at beginning of period			35,234	41,314
Cash and restricted cash at end of period	$ 32,200	$ 37,907	$ 32,200	$ 37,907

Note 1 - Description of Business	6 Months Ended
Note 1 - Description of Business	Jun. 30, 2019
Notes to Financial Statements
Business Description and Basis of Presentation [Text Block]	1. Description of Business Liquidmetal Technologies, Inc. (the “Company”) is a materials technology company that develops and commercializes products made from amorphous alloys. The Company’s family of alloys consists of a variety of bulk alloys and composites that utilizes the advantages offered by amorphous alloys technology. The Company designs, develops and sells products and custom parts from bulk amorphous alloys to customers in a wide range of industries. The Company also partners with third -party manufacturers and licensees to develop and commercialize Liquidmetal alloy products. Amorphous alloys are, in general, unique materials that are distinguished by their ability to retain a random atomic structure when they solidify, in contrast to the crystalline atomic structure that forms in other metals and alloys when they solidify. Liquidmetal alloys are proprietary amorphous alloys that possess a combination of performance, processing, and potential cost advantages that the Company believes will make them preferable to other materials in a variety of applications. The amorphous atomic structure of bulk alloys enables them to overcome certain performance limitations caused by inherent weaknesses in crystalline atomic structures, thus facilitating performance and processing characteristics superior in many ways to those of their crystalline counterparts. The Company believes that the alloys and the molding technologies it employs may result in components, for many applications, that exhibit: exceptional dimensional control and repeatability that rivals precision machining, excellent corrosion resistance, brilliant surface finish, high strength, high hardness, high elastic limit, alloys that are non-magnetic, and the ability to form complex shapes common to the injection molding of plastics. Interestingly, all of these characteristics are achievable from the molding process, so design engineers often do not have to select specific alloys to achieve one or more of the characteristics as is the case with crystalline materials. The Company believes these advantages could result in Liquidmetal alloys supplanting high-performance alloys, such as titanium and stainless steel, and other incumbent materials in a wide variety of applications. Moreover, the Company believes these advantages could enable the introduction of entirely new products and applications that are not possible or commercially viable with other materials. The Company’s revenues are derived from i) selling bulk Liquidmetal alloy products to customers who produce medical devices, automotive assemblies, sports and leisure goods, and non-consumer electronic devices, ii) selling tooling and prototype parts such as demonstration parts and test samples for customers with products in development, iii) product licensing and royalty revenue, and iv) research and development revenue. The Company expects that these sources of revenue will continue to significantly change the character of the Company’s revenue mix. In July 2019, the Company adopted a restructuring plan pursuant to which the Company elected to wind down its prior manufacturing operations at the Company’s Lake Forest, CA facility and seek to outsource the manufacture of parts utilizing the Company’s technology through its domestic and international manufacturing partners (the “July 2019 Restructuring Plan”). In connection with the July 2019 Restructuring Plan, the Company has shifted its business strategy from internal manufacture of parts and products for customers toward the use and reliance of outsourced manufacturers, which will initially be Dongguan Yihao Metals Materials Technology Co., Ltd. (“Yihao”), a China-based company that is an affiliate of our largest beneficial stockholder, CEO and Chairman, Professor Lugee Li.

Note 2 - Basis of Presentation and Recent Accounting Pronouncements

6 Months Ended

Jun. 30, 2019

Notes to Financial Statements

Basis of Presentation and Significant Accounting Policies [Text Block]

Basis of Presentation and Recent Accounting Pronouncements

The accompanying unaudited interim consolidated financial statements as of and for the

six

months ended

June 30, 2019

and

June 30, 2018

have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and in accordance with the instructions to Form

-Q. Accordingly, they do

not

include all of the information and notes required by US GAAP for complete financial statements. In the opinion of management, all adjustments (consisting only of normal recurring accruals) considered necessary for a fair presentation have been included. All intercompany balances and transactions have been eliminated in consolidation. Operating results for the

three

and

six

months ended

June 30, 2019

are

not

necessarily indicative of the results that

may

be expected for any future periods or the year ending

December 31, 2019.

The accompanying unaudited consolidated financial statements should be read in conjunction with the Company's

2018

Annual Report on Form

-K filed with the Securities and Exchange Commission (“SEC”) on

March 5, 2019.

Impairment of long-lived assets

The Company reviews long-lived assets to be held and used in operations for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may be impaired. These evaluations may result from significant decreases in the overall market outlook for the Company’s technology or the market price of an asset, a significant adverse change in the extent or manner in which an asset is being used in its physical condition, a significant adverse change in legal factors or in the business climate that could affect the value of an asset, as well as economic or operational analyses. If the Company concludes that the carrying value of certain assets will not be recovered based on expected undiscounted future cash flows, an impairment write-down is recorded to reduce the assets to their estimated fair value. Fair value is determined via market, cost and income based valuation techniques, as appropriate. The fair value is measured on a nonrecurring basis using a combination of quoted prices for similar assets in active markets and other unobservable adjustments to historical cost (Level 3) inputs. Based on the results of this analysis, the Company recorded non-cash impairment charges of $1,676 for the three and six month periods ended June 30, 2019, primarily related to the carrying value of the Company’s manufacturing assets that it does not plan to utilize as a result of the July 2019 Restructuring Plan.

Leases

In February 2016, the Financial Accounting Standards Board (“FASB”) issued an accounting standards update which modifies the accounting for leasing arrangements, particularly those arrangements classified as operating leases. This update will require entities to recognize the assets and liabilities arising from operating leases on the balance sheet. The Company adopted the requirements of this guidance as of January 1, 2019, utilizing the modified retrospective approach. Due to the Company not having any qualifying lease obligations, the adoption of this guidance did not have any impact on the Company’s consolidated financial statements.

Liability Classified Warrants

July 2017,

the FASB issued an accounting standards update which modifies the requirements for the classification of certain financial instruments with down round features as equity versus liabilities. The guidance will allow for financial instruments previously required to be presented as liabilities due to the presence of down round features to be presented as equity upon meeting other criteria. The Company adopted the requirements of this update effective as of

January 1, 2019,

utilizing the full retrospective transition option. Accordingly, the Company reclassified the warrant liability to additional paid in capital on its

December 31, 2018

consolidated balance sheets, which increased additional paid-in capital by

$6,970,

increased accumulated deficit by

$4,778,

and decreased warrant liability by

$2,192.

In addition, because of the retrospective adoption, the Company credited change in fair value of warrant liability on its consolidated statements of operations by

$1,267

for year ended

December 31, 2018.

The change in fair value of the warrant liability was offset by a

$1,267

credit to accumulated deficit on the consolidated balance sheets. Similarly, the Company debited change in fair value of warrant liability on its consolidated statements of operations by

$283

and

for

three

and

six

month periods ended

June 30, 2018,

respectively. The adoption of this guidance had

impact on the Company’s consolidated statement of cash flows in the current or previous interim and annual reporting periods. The following table provides a reconciliation of warrant liability, additional paid-in capital, accumulated deficit, and change in fair value of warrant liability on the consolidated balance sheets for the year ended

December 31, 2018

and the

three

and

six

month periods ended

June 30, 2018:

	Balance Sheet
	Warrant Liability			APIC		Accum Def.

Balance as of 12/31/2018 (Prior to Adoption of ASU 2017-11)	$	925		$	279,306	$	(252,809	)
Reverse beginning balance as of January 1, 2018		(2,192	)		6,970		(4,778	)
Change in fair value of warrant liability		1,267			-		(1,267	)
Balance as of 12/31/2018 (After Adoption of ASU 2017-11)	$	-		$	286,276	$	(258,854	)

	Statement of Operations
	For the three-months ended June 30, 2018						For the six-months ended June 30, 2018
	Change in Value of Warrant Liability			Net Loss and Comprehensive Loss			Change in Value of Warrant Liability			Net Loss and Comprehensive Loss

Balance as of 6/30/2018 (Prior to Adoption of ASU 2017-11)	$	283		$	(1,859	)	$	8		$	(4,297	)
Reverse beginning balance as of January 1, 2018		-			-			-			-
Change in fair value of warrant liability		(283	)		(283	)		(8	)		(8	)
Balance as of 6/30/2018 (After Adoption of ASU 2017-11)	$	-		$	(2,142	)	$	-		$	(4,305	)

Fair Value

Measurements

The estimated fair values of financial instruments reported in the consolidated financial statements have been determined using available market information and valuation methodologies, as applicable. The fair value of cash and restricted cash approximate their carrying value due to their short maturities and are classified as Level 1 instruments within the fair value hierarchy.

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Entities are required to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value based upon the following fair value hierarchy:

Level 1 —

Quoted prices in active markets for identical assets or liabilities;

Level 2 —

Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and

Level 3 —

Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

Non-recurring fair value measurements.

Certain assets and liabilities are measured at fair value on a nonrecurring basis. In other words, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances (for example, when there is evidence of impairment).

The following non-financial instruments were measured at fair value, on a nonrecurring basis, as of and for the quarter ended June 30, 2019:

	Fair Value		Level 1		Level 2		Level 3		Impairment Losses

Property and equipment, net	$	1,178	$	-	$	-	$	1,178	$	1,676

Other recent pronouncements

Other recent accounting pronouncements issued by the FASB (including its Emerging Issues Task Force), the American Institute of Certified Public Accountants and the SEC did

not

or are

not

believed by management to have a material impact on the Company's present or future consolidated financial statements.

Note 3 - Significant Transactions	6 Months Ended
Note 3 - Significant Transactions	Jun. 30, 2019
Notes to Financial Statements
Significant Transactions [Text Block]	3 . Significant Transactions Manufacturing Facility Purchase On February 16, 2017, the Company purchased a 41,000 square foot manufacturing facility located in Lake Forest, CA, where operations commenced during July 2017. The purchase price for the property was $7,818. As a result of the 2019 Restructuring Plan, the Company will discontinue manufacturing operations in this facility and seek to lease it to a third -party commercial tenant. 2016 Purchase Agreement On March 10, 2016, the Company entered into a Securities Purchase Agreement (the “2016 Purchase Agreement”) with Liquidmetal Technology Limited, a Hong Kong company (the “Investor”), which is controlled by the Company’s Chairman and CEO, Professor Lugee Li (“Professor Li”). The 2016 Purchase Agreement provided for the purchase by the Investor of a total of 405,000,000 shares of the Company’s common stock for an aggregate purchase price of $63,400. The transaction occurred in multiple closings, with the Investor having purchased 105,000,000 shares at a purchase price of $8,400 (or $0.08 per share) at the initial closing on March 10, 2016 and the remaining 200,000,000 shares at $0.15 per share and 100,000,000 shares at $0.25 per share for an aggregate purchase price of $55,000 on October 26, 2016. In addition to the shares issuable under the 2016 Purchase Agreement, the Company issued to the Investor a warrant to acquire 10,066,809 shares of common stock (of which the right to exercise 2,609,913 of the warrant shares vested on March 10, 2016 and the right to exercise the remaining 7,456,896 warrant shares vested on October 26, 2016 at an exercise price of $0.07 per share). The warrant will expire on the tenth anniversary of its issuance date. Further, the 2016 Purchase Agreement provided that the Investor would have the right to designate three members of the Company’s board of directors, with one such member serving as Chairman. The 2016 Purchase Agreement also provided that, with certain limited exceptions, if the Company issues any shares of common stock at any time through the fifth anniversary of the 2016 Purchase Agreement, the Investor will have a preemptive right to subscribe for and to purchase at the same price per share (or at market price, in the case of issuance of shares pursuant to stock options) the number of shares necessary to maintain its ownership percentage of Company-issued shares of common stock. Eontec License Agreement On March 10, 2016, in connection with the 2016 Purchase Agreement, the Company and DongGuan Eontec Co., Ltd., a Hong Kong corporation (“Eontec”), entered into a Parallel License Agreement (the “License Agreement”) pursuant to which the Company and Eontec agreed to cross-license their respective technologies. The Company’s Chairman and CEO, Professor Li, is also a major shareholder and Chairman of Eontec. The License Agreement provides for the cross-license of certain patents, technical information, and trademarks between the Company and Eontec. In particular, the Company granted to Eontec a paid-up, royalty-free, perpetual license to the Company’s patents and related technical information to make, have made, use, offer to sell, sell, export, and import products in certain geographic areas outside of North America and Europe. In turn, Eontec granted to the Company a paid-up, royalty-free, perpetual license to Eontec’s patents and related technical information to make, have made, use, offer to sell, sell, export, and import products in certain geographic areas outside of specified countries in Asia. The license granted by the Company to Eontec is exclusive (including to the exclusion of the Company) in the countries of Brunei, Cambodia, China (P.R.C and R.O.C.), East Timor, Indonesia, Japan, Laos, Malaysia, Myanmar, Philippines, Singapore, South Korea, Thailand, and Vietnam. The license granted by Eontec to the Company is exclusive (including to the exclusion of Eontec) in North America and Europe. The cross-licenses are non-exclusive in geographic areas outside of the foregoing exclusive territories. Beyond the License Agreement, the Company collaborates with Eontec to accelerate the commercialization of amorphous alloy technology. This includes but is not limited to developing technologies to reduce the cost of amorphous alloys, working on die cast machine technology platforms to pursue broader markets, sharing knowledge to broaden our intellectual property portfolio, and utilizing Eontec’s volume production capabilities as a third party contract manufacturer. During March 2017, the Company signed contracts with Eontec to purchase two hot-crucible amorphous metal molding machines (“Machines”) at a total purchase price of $780. The Machines were delivered to the Company’s new manufacturing facility located in Lake Forest, CA in April 2017 and were operational during the fourth quarter of 2017. As a result of the 2019 Restructuring Plan, the Company will seek to develop domestic manufacturing partners and will transfer the Machines, and associated equipment, to support the continued commercialization of amorphous metal applications. Apple License Transaction On August 5, 2010, the Company entered into a license transaction with Apple Inc. (“Apple”) pursuant to which (i) the Company contributed substantially all of its intellectual property assets to a newly organized special-purpose, wholly-owned subsidiary, called Crucible Intellectual Property, LLC (“CIP”), (ii) CIP granted to Apple a perpetual, worldwide, fully-paid, exclusive license to commercialize such intellectual property in the field of consumer electronic products, as defined in the license agreement, in exchange for a license fee, and (iii) CIP granted back to the Company a perpetual, worldwide, fully-paid, exclusive license to commercialize such intellectual property in all other fields of use. Under the agreements relating to the license transaction with Apple, the Company was obligated to contribute, to CIP, all intellectual property developed through February 2016. The Company is also obligated to maintain certain limited liability company formalities with respect to CIP at all times after the closing of the license transaction. Other License Transactions On January 31, 2012, the Company entered into a Supply and License Agreement for a five year term with Engel Austria Gmbh (“Engel”) whereby Engel was granted a non-exclusive license to manufacture and sell injection molding machines to the Company’s licensees. Since that time, the Company and Engel have agreed on an injection molding machine configuration that can be commercially supplied and supported by Engel. On December 6, 2013, the companies entered into an Exclusivity Agreement for a 10 year term whereby the Company agreed, with certain exceptions and limitations, that the Company and its licensees would purchase amorphous alloy injection molding machines exclusively from Engel in exchange for certain royalties to be paid by Engel to the Company based on a percentage of the net sales price of such injection molding machines. The Company’s majority-owned Liquidmetal Golf subsidiary has the exclusive right and license to utilize the Company’s Liquidmetal alloy technology for purposes of golf equipment applications. This right and license is set forth in an intercompany license agreement between Liquidmetal Technologies and Liquidmetal Golf. This license agreement provides that Liquidmetal Golf has a perpetual and exclusive license to use Liquidmetal alloy technology for the purpose of manufacturing, marketing, and selling golf club parts and other products used in the sport of golf. The Company owns 79% of the outstanding common stock of Liquidmetal Golf. In June 2003, the Company entered into an exclusive license agreement with LLPG, Inc. (“LLPG”). Under the terms of the agreement, LLPG has the exclusive right to commercialize Liquidmetal alloys, particularly precious-metal based compositions, in jewelry and high-end luxury product markets. The Company, in turn, will receive royalty payments over the life of the contract on all Liquidmetal products produced and sold by LLPG. The exclusive license agreement with LLPG expires on December 31, 2021. In March 2009, the Company entered into a license agreement with Swatch Group, Ltd. (“Swatch”) under which Swatch was granted a non-exclusive license to the Company’s technology to produce and market watches and certain other luxury products. In March 2011, this license agreement was amended to grant Swatch exclusive rights as to watches, but non-exclusive as to Apple, and the Company’s license agreement with LLPG was simultaneously amended to exclude watches from LLPG’s rights. The Company will receive royalty payments over the life of the contract on all Liquidmetal products produced and sold by Swatch. The license agreement with Swatch will expire on the expiration date of the last licensed patent.

Note 6 - Property and Equipment, Net

6 Months Ended

Jun. 30, 2019

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

Property and Equipment, net

Property and equipment consist of the following:

	June 30, 2019			December 31, 2018

Land, building, and improvements	$	9,494		$	9,039
Machinery and equipment		2,344			5,745
Computer equipment		272			282
Office equipment, furnishings, and improvements		66			181
Total		12,176			15,247
Accumulated depreciation		(2,018	)		(3,480	)
Total property and equipment, net	$	10,158		$	11,767

Depreciation expense for

three

and

six

months ended

June 30, 2019

was

$262

and

$520,

respectively. Depreciation expense for the

three

and

six

months ended

June 30, 2018

was

$252

and

$483,

respectively. For the

three

and

six

months ended

June 30, 2019,

$28

and

$51

of depreciation expense, respectively, was included in cost of sales and

$234

and

$469

was included in selling, marketing, general and administrative expenses, respectively. For the

three

and

six

months ended

June 30, 2018,

$14

and

$27

of depreciation expense, respectively, was included in cost of sales and

$238

and

$456

was included in selling, marketing, general and administrative expenses, respectively.

During

July 2019,

the Company announced a corporate restructuring plan (the “Plan”) that will involve, among other actions, the disposal of the Company’s manufacturing equipment. The implications of the Plan, including asset groupings and future use, have been incorporated into the Company’s periodic review of its long-lived assets for impairment as of

June 30, 2019.

As a result of this assessment, the Company recorded non-cash impairment charges of

$1,676,

during the

three

months ended

June 30, 2019.

Note 7 - Patents and Trademarks, Net	6 Months Ended
Note 7 - Patents and Trademarks, Net	Jun. 30, 2019
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	7 . Patents and T rademarks, net Net patents and trademarks totaled $280 and $322 as of June 30, 2019 and December 31, 2018, respectively, and primarily consisted of purchased patent rights and internally developed patents. Purchased patent rights represent the exclusive right to commercialize the bulk amorphous alloy and other amorphous alloy technology acquired from California Institute of Technology (“Caltech”), through a license agreement with Caltech and other institutions. All fees and other amounts payable by the Company for these rights and licenses have been paid or accrued in full, and no further royalties, license fees, or other amounts will be payable in the future under the license agreement. In addition to the purchased and licensed patents, the Company has internally developed patents. Internally developed patents include legal and registration costs incurred to obtain the respective patents. The Company currently holds various patents and numerous pending patent applications in the United States, as well as numerous foreign counterparts to these patents outside of the United States. The Company amortizes capitalized patents and trademarks over an average of 10 to 17 year periods. Amortization expense for patents and trademarks was $21 and $42 for the three and six months ended June 30, 2019, respectively. This compares to $22 and $42 for the three and six months ended June 30, 2018, respectively.

Note 11 - Stock Compensation Plans	6 Months Ended
Note 11 - Stock Compensation Plans	Jun. 30, 2019
Notes to Financial Statements
Share-based Payment Arrangement [Text Block]	1 1 . Stock Compensation Plan s On April 4, 2002, our shareholders and Board of Directors adopted the 2002 Equity Incentive Plan ( “2002 Plan”). The 2002 Plan provided for the grant of stock options to officers, employees, consultants and directors of the Company and its subsidiaries. A total of 10,000,000 shares of our common stock were available to be granted under the 2002 Plan. The 2002 Plan expired by its terms in April 2012, and remains in effect only with respect to the equity awards that have been granted prior to its expiration. As of June 30, 2019 and December 31, 2018, there were 169,000 and 169,000 options, respectively, outstanding under the 2002 Plan. On June 28, 2012, the Company adopted the 2012 Equity Incentive Plan ( “2012 Plan”), with the approval of the shareholders, which provides for the grant of stock options to officers, employees, consultants and directors of the Company and its subsidiaries. The 2012 Plan provides for the granting to employees of incentive stock options within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended, and for the granting to employees and consultants of non-statutory stock options. In addition, the Plan permits the granting of stock appreciation rights, or SARs, with or independently of options, as well as stock bonuses and rights to purchase restricted stock. A total of 30,000,000 shares of the Company’s common stock may be granted under the 2012 Plan, and all options granted under the 2012 Plan had exercise prices that were equal to the fair market value on the date of grant. During the six months ended June 30, 2019, the Company granted no options to purchase shares of common stock. Under this plan, the Company had outstanding grants of options to purchase 9,681,026 and 11,755,503 shares of the Company’s common stock as of June 30, 2019 and December 31, 2018, respectively. On January 27, 2015, the Company adopted its 2015 Equity Incentive Plan ( “2015 Plan”), which provided for the grant of stock options to officers, employees, consultants, and directors of the Company and its subsidiaries. A total of 40,000,000 shares of the Company’s common stock are available for issuance under the 2015 Plan. All options granted under the 2015 Plan had exercise prices that were equal to the fair market value on the dates of grant. During the six months ended June 30, 2019, the Company granted no options to purchase shares of common stock. Under this plan, the Company had outstanding grants of options to purchase 16,238,334 and 16,906,667 shares of the Company’s common stock as of June 30, 2019 and December 31, 2018, respectively. Stock based compensation expense attributable to these plans was $160 and $342 for the three and six months ended June 30, 2019, respectively. This compares to $266 and $547 for the three and six months ended June 30, 2018, respectively. In connection with the separation of former executives and directors, the Company has modified previously granted equity awards to allow for the acceleration of vesting of equity awards, and the extension of the timing to exercise vested awards, following the respective separation dates. The Company incurred incremental stock-based compensation expense of $0 and $0 during the three and six months ended June 30, 2019, respectively. This compares to $48 and $104 for the three and six months ended June 30, 2018, respectively.

Note 12 - Consolidated Statements of Changes in Equity

6 Months Ended

Jun. 30, 2019

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

Consolidated Statements of Changes in Equity

The following table provides the Company’s changes in equity for the

three

months ended

June 30, 2019:

	Preferred Shares		Common Shares		Common Stock		Warrants part of Additional Paid- in Capital		Additional Paid-in Capital		Accumulated Deficit			Non- Controlling Interest			Total
Balance, March 31, 2019		-		914,316,624	$	914	$	18,179	$	286,469	$	(260,622	)	$	(74	)	$	44,866

Stock option exercises				42,500		-				3								3
Stock-based compensation				-		-				160								160
Net loss												(3,223	)		(1	)		(3,224	)

Balance, June 30, 2019		-		914,359,124	$	914	$	18,179	$	286,632	$	(263,845	)	$	(75	)	$	41,805

The following table provides the Company’s changes in equity for the

six

months ended

June 30, 2019:

	Preferred Shares		Common Shares		Common Stock		Warrants part of Additional Paid- in Capital		Additional Paid-in Capital		Accumulated Deficit			Non- Controlling Interest			Total
Balance, December 31, 2018		-		914,206,832	$	914	$	18,179	$	286,276	$	(258,854	)	$	(74	)	$	46,441

Stock option exercises				152,292		-				14								14
Stock-based compensation				-		-				342								342
Net loss												(4,991	)		(1	)		(4,992	)

Balance, June 30, 2019		-		914,359,124	$	914	$	18,179	$	286,632	$	(263,845	)	$	(75	)	$	41,805

The following table provides the Company’s changes in equity for the

three

months ended

June 30, 2018:

	Preferred Shares		Common Shares		Common Stock		Warrants part of Additional Paid- in Capital		Additional Paid-in Capital		Accumulated Deficit			Non- Controlling Interest			Total
Balance, March 31, 2018		-		909,183,592	$	909	$	18,179	$	285,217	$	(252,317	)	$	(73	)	$	51,915

Stock option exercises				55,417		-				5								5
Stock-based compensation				-		-				266								266
Net loss												(2,142	)		-			(2,142	)

Balance, June 30, 2018		-		909,239,009	$	909	$	18,179	$	285,488	$	(254,459	)	$	(73	)	$	50,044

The following table provides the Company’s changes in equity for the

six

months ended

June 30, 2018:

	Preferred Shares		Common Shares		Common Stock		Warrants part of Additional Paid- in Capital		Additional Paid-in Capital		Accumulated Deficit			Non- Controlling Interest			Total
Balance, December 31, 2017		-		908,768,116	$	909	$	18,179	$	284,894	$	(250,154	)	$	(73	)	$	53,755

Stock option exercises				470,893		-				47								47
Stock-based compensation				-		-				547								547
Net loss												(4,305	)					(4,305	)

Balance, June 30, 2018		-		909,239,009	$	909	$	18,179	$	285,488	$	(254,459	)	$	(73	)	$	50,044

Note 13 - Loss Per Common Share	6 Months Ended
Note 13 - Loss Per Common Share	Jun. 30, 2019
Notes to Financial Statements
Earnings Per Share [Text Block]	13. Loss Per Common Share Basic earnings per share (“EPS”) is computed by dividing earnings (loss) attributable to common shareholders by the weighted average number of common shares outstanding for the applicable period. Diluted EPS reflects the potential dilution of securities that could share in the earnings. Options to purchase 26,088,360 shares of common stock, at prices ranging from $0.07 to $0.38 per share, were outstanding at June 30, 2019, but were not included in the computation of diluted EPS for the same period as the inclusion would have been antidilutive, given the Company’s net loss. Warrants to purchase 10,066,809 shares of common stock, with a price of $0.07 per share, outstanding at June 30, 2019, were not included in the computation of diluted EPS for the same period as the inclusion would have been antidilutive, given the Company’s net loss. Options to purchase 34,938,618 shares of common stock, at prices ranging from $0.07 to $0.47 per share, were outstanding at June 30, 2018, but were not included in the computation of diluted EPS for the same period as the inclusion would have been antidilutive, given the Company’s net loss. Warrants to purchase 10,066,809 shares of common stock, with a price of $0.07 per share, outstanding at June 30, 2018, were not included in the computation of diluted EPS for the same period as the inclusion would have been antidilutive, given the Company’s net loss.

Note 15 - Related Party Transactions	6 Months Ended
Note 15 - Related Party Transactions	Jun. 30, 2019
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	1 5 . Related Party Transactions On March 10, 2016, the Company entered into the 2016 Purchase Agreement with Liquidmetal Technology Limited, providing for the purchase of 405,000,000 shares of the Company’s common stock for an aggregate purchase price of $63,400. Liquidmetal Technology Limited was a newly formed company owned by Professor Li. In connection with the 2016 Purchase Agreement and also on March 10, 2016, the Company and Eontec, entered into a license agreement pursuant to which the Company and Eontec entered into a cross-license of their respective technologies. Eontec is a publicly held Hong Kong corporation of which Professor Li is the Chairman and major shareholder. As of June 30, 2019, Professor Li is a greater-than 5% beneficial owner of the Company and serves as the Company’s Chairman, President, and Chief Executive Officer. Equipment and services procured from Eontec were $0 and $0 during the three and six months ended June 30, 2019, respectively. Equipment and services procured from Eontec were $48 and $53 during the three and six months ended June 30, 2018, respectively.

Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]

Impairment of long-lived assets

Lessee, Leases [Policy Text Block]

Leases

February 2016,

the Financial Accounting Standards Board (“FASB”) issued an accounting standards update which modifies the accounting for leasing arrangements, particularly those arrangements classified as operating leases. This update will require entities to recognize the assets and liabilities arising from operating leases on the balance sheet. The Company adopted the requirements of this guidance as of

January 1, 2019,

utilizing the modified retrospective approach. Due to the Company

not

having any qualifying lease obligations, the adoption of this guidance did

not

have any impact on the Company’s consolidated financial statements.

Adoption of New Accounting Pronouncements [Policy Text Block]

Liability Classified Warrants

July 2017,

January 1, 2019,

utilizing the full retrospective transition option. Accordingly, the Company reclassified the warrant liability to additional paid in capital on its

December 31, 2018

consolidated balance sheets, which increased additional paid-in capital by

$6,970,

increased accumulated deficit by

$4,778,

and decreased warrant liability by

$2,192.

In addition, because of the retrospective adoption, the Company credited change in fair value of warrant liability on its consolidated statements of operations by

$1,267

for year ended

December 31, 2018.

The change in fair value of the warrant liability was offset by a

$1,267

credit to accumulated deficit on the consolidated balance sheets. Similarly, the Company debited change in fair value of warrant liability on its consolidated statements of operations by

$283

and

for

three

and

six

month periods ended

June 30, 2018,

respectively. The adoption of this guidance had

December 31, 2018

and the

three

and

six

month periods ended

June 30, 2018:

	Balance Sheet
	Warrant Liability			APIC		Accum Def.

Balance as of 12/31/2018 (Prior to Adoption of ASU 2017-11)	$	925		$	279,306	$	(252,809	)
Reverse beginning balance as of January 1, 2018		(2,192	)		6,970		(4,778	)
Change in fair value of warrant liability		1,267			-		(1,267	)
Balance as of 12/31/2018 (After Adoption of ASU 2017-11)	$	-		$	286,276	$	(258,854	)

	Statement of Operations
	For the three-months ended June 30, 2018						For the six-months ended June 30, 2018
	Change in Value of Warrant Liability			Net Loss and Comprehensive Loss			Change in Value of Warrant Liability			Net Loss and Comprehensive Loss

Balance as of 6/30/2018 (Prior to Adoption of ASU 2017-11)	$	283		$	(1,859	)	$	8		$	(4,297	)
Reverse beginning balance as of January 1, 2018		-			-			-			-
Change in fair value of warrant liability		(283	)		(283	)		(8	)		(8	)
Balance as of 6/30/2018 (After Adoption of ASU 2017-11)	$	-		$	(2,142	)	$	-		$	(4,305	)

Fair Value Measurement, Policy [Policy Text Block]

Fair Value

Measurements

Level 1 —

Quoted prices in active markets for identical assets or liabilities;

Level 2 —

Level 3 —

Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

Non-recurring fair value measurements.

The following non-financial instruments were measured at fair value, on a nonrecurring basis, as of and for the quarter ended June 30, 2019:

	Fair Value		Level 1		Level 2		Level 3		Impairment Losses

Property and equipment, net	$	1,178	$	-	$	-	$	1,178	$	1,676

New Accounting Pronouncements, Policy [Policy Text Block]

Other recent pronouncements

Other recent accounting pronouncements issued by the FASB (including its Emerging Issues Task Force), the American Institute of Certified Public Accountants and the SEC did

not

or are

not

believed by management to have a material impact on the Company's present or future consolidated financial statements.

Note 2 - Basis of Presentation and Recent Accounting Pronouncements (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

	Balance Sheet
	Warrant Liability			APIC		Accum Def.

Balance as of 12/31/2018 (Prior to Adoption of ASU 2017-11)	$	925		$	279,306	$	(252,809	)
Reverse beginning balance as of January 1, 2018		(2,192	)		6,970		(4,778	)
Change in fair value of warrant liability		1,267			-		(1,267	)
Balance as of 12/31/2018 (After Adoption of ASU 2017-11)	$	-		$	286,276	$	(258,854	)

	Statement of Operations
	For the three-months ended June 30, 2018						For the six-months ended June 30, 2018
	Change in Value of Warrant Liability			Net Loss and Comprehensive Loss			Change in Value of Warrant Liability			Net Loss and Comprehensive Loss

Balance as of 6/30/2018 (Prior to Adoption of ASU 2017-11)	$	283		$	(1,859	)	$	8		$	(4,297	)
Reverse beginning balance as of January 1, 2018		-			-			-			-
Change in fair value of warrant liability		(283	)		(283	)		(8	)		(8	)
Balance as of 6/30/2018 (After Adoption of ASU 2017-11)	$	-		$	(2,142	)	$	-		$	(4,305	)

Fair Value Measurements, Nonrecurring [Table Text Block]

	Fair Value		Level 1		Level 2		Level 3		Impairment Losses

Property and equipment, net	$	1,178	$	-	$	-	$	1,178	$	1,676

Note 5 - Inventory (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	June 30, 2019		December 31, 2018

Work in progress	$	87	$	31
Total	$	87	$	31

Note 12 - Consolidated Statements of Changes in Equity (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Schedule of Stockholders Equity [Table Text Block]

	Preferred Shares		Common Shares		Common Stock		Warrants part of Additional Paid- in Capital		Additional Paid-in Capital		Accumulated Deficit			Non- Controlling Interest			Total
Balance, March 31, 2019		-		914,316,624	$	914	$	18,179	$	286,469	$	(260,622	)	$	(74	)	$	44,866

Stock option exercises				42,500		-				3								3
Stock-based compensation				-		-				160								160
Net loss												(3,223	)		(1	)		(3,224	)

Balance, June 30, 2019		-		914,359,124	$	914	$	18,179	$	286,632	$	(263,845	)	$	(75	)	$	41,805

	Preferred Shares		Common Shares		Common Stock		Warrants part of Additional Paid- in Capital		Additional Paid-in Capital		Accumulated Deficit			Non- Controlling Interest			Total
Balance, December 31, 2018		-		914,206,832	$	914	$	18,179	$	286,276	$	(258,854	)	$	(74	)	$	46,441

Stock option exercises				152,292		-				14								14
Stock-based compensation				-		-				342								342
Net loss												(4,991	)		(1	)		(4,992	)

Balance, June 30, 2019		-		914,359,124	$	914	$	18,179	$	286,632	$	(263,845	)	$	(75	)	$	41,805

	Preferred Shares		Common Shares		Common Stock		Warrants part of Additional Paid- in Capital		Additional Paid-in Capital		Accumulated Deficit			Non- Controlling Interest			Total
Balance, March 31, 2018		-		909,183,592	$	909	$	18,179	$	285,217	$	(252,317	)	$	(73	)	$	51,915

Stock option exercises				55,417		-				5								5
Stock-based compensation				-		-				266								266
Net loss												(2,142	)		-			(2,142	)

Balance, June 30, 2018		-		909,239,009	$	909	$	18,179	$	285,488	$	(254,459	)	$	(73	)	$	50,044

	Preferred Shares		Common Shares		Common Stock		Warrants part of Additional Paid- in Capital		Additional Paid-in Capital		Accumulated Deficit			Non- Controlling Interest			Total
Balance, December 31, 2017		-		908,768,116	$	909	$	18,179	$	284,894	$	(250,154	)	$	(73	)	$	53,755

Stock option exercises				470,893		-				47								47
Stock-based compensation				-		-				547								547
Net loss												(4,305	)					(4,305	)

Balance, June 30, 2018		-		909,239,009	$	909	$	18,179	$	285,488	$	(254,459	)	$	(73	)	$	50,044

Note 2 - Basis of Presentation and Recent Accounting Pronouncements (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Jan. 01, 2019
Fair Value Adjustment of Warrants
Impairment of Intangible Assets, Finite-lived	$ 1,676		$ 1,676
Warrant [Member]
Derivative Liability, Total
Accounting Standards Update 2017-11 [Member] \| Warrant [Member]
Derivative Liability, Total						$ (2,192)
Fair Value Adjustment of Warrants		$ 283		$ 8	(1,267)
Additional Paid-in Capital [Member] \| Accounting Standards Update 2017-11 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption						6,970
Retained Earnings [Member] \| Accounting Standards Update 2017-11 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption						$ (4,778)
Retained Earnings [Member] \| Accounting Standards Update 2017-11 [Member] \| Warrant [Member]
Fair Value Adjustment of Warrants					$ (1,267)

Note 2 - Basis of Presentation and Recent Accounting Pronouncements - Adoption of New Accounting Pronouncement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Jan. 01, 2019
Additional paid-in capital	$ 286,632		$ 286,632		$ 286,276
Accumulated deficit	(263,845)		(263,845)		(258,854)
Change in value of warrants, gain (loss)
Net loss	$ (3,223)	(2,142)	$ (4,991)	(4,305)
Warrant [Member]
Warrant liability
Warrant [Member] \| Accounting Standards Update 2017-11 [Member]
Warrant liability						$ (2,192)
Change in value of warrants, gain (loss)		283		8	(1,267)
Warrant [Member] \| Accounting Standards Update 2017-11 [Member] \| Retained Earnings [Member]
Change in value of warrants, gain (loss)					(1,267)
Previously Reported [Member]
Additional paid-in capital					279,306
Accumulated deficit					(252,809)
Change in value of warrants, gain (loss)		283		8
Net loss		(1,859)		(4,297)
Previously Reported [Member] \| Warrant [Member]
Warrant liability					925
Restatement Adjustment [Member] \| Accounting Standards Update 2017-11 [Member]
Additional paid-in capital					6,970
Accumulated deficit					(4,778)
Change in value of warrants, gain (loss)		(283)		(8)
Net loss		$ (283)		$ (8)
Restatement Adjustment [Member] \| Accounting Standards Update 2017-11 [Member] \| Retained Earnings [Member]
Change in value of warrants, gain (loss)					(1,267)
Restatement Adjustment [Member] \| Warrant [Member] \| Accounting Standards Update 2017-11 [Member]
Warrant liability					(2,192)
Change in value of warrants, gain (loss)					$ 1,267

Note 2 - Basis of Presentation and Recent Accounting Pronouncements - Non-financial Instruments Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Impairment of long-lived assets	$ 1,676		$ 1,676
Fair Value, Nonrecurring [Member] \| Property, Plant and Equipment [Member]
Non-financial Instruments	1,178		1,178
Fair Value, Nonrecurring [Member] \| Property, Plant and Equipment [Member] \| Fair Value, Inputs, Level 1 [Member]
Non-financial Instruments
Fair Value, Nonrecurring [Member] \| Property, Plant and Equipment [Member] \| Fair Value, Inputs, Level 2 [Member]
Non-financial Instruments
Fair Value, Nonrecurring [Member] \| Property, Plant and Equipment [Member] \| Fair Value, Inputs, Level 3 [Member]
Non-financial Instruments	$ 1,178		$ 1,178

Note 3 - Significant Transactions (Details Textual) $ / shares in Units, $ in Thousands	Feb. 16, 2017 USD ($) ft²	Mar. 10, 2016 USD ($) $ / shares shares	Dec. 06, 2013	Jan. 31, 2012	Mar. 31, 2019	Mar. 31, 2017 USD ($)	Oct. 26, 2016 USD ($) $ / shares shares
Area of Land \| ft²	41,000
Liquidmetal Golf [Member]
Noncontrolling Interest, Ownership Percentage by Parent					79.00%
Eontec [Member]
Purchase Price for Machinery and Equipment \| $						$ 780
Warrants in Connection with the 2016 Purchase Agreement [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		10,066,809
Class of Warrant or Right, Exercise Price of Warrants or Rights \| $ / shares							$ 0.07
Warrants and Rights Outstanding, Term							10 years
Warrants in Connection with the 2016 Purchase Agreement [Member] \| Vest on March 10, 2016 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights		2,609,913
Warrants in Connection with the 2016 Purchase Agreement [Member] \| Vest on October 26, 2016 [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights							7,456,896
The 2016 Purchase Agreement [Member]
Common Stock Purchase Agreement, Number of Shares Authorized to Issue and Sell to Investors		405,000,000
Common Stock Purchase Agreement, Value of Shares Authorized to Issue and Sell to Investors \| $		$ 63,400
Stock Issued During Period, Shares, New Issues		105,000,000
Stock Issued During Period, Value, New Issues \| $		$ 8,400
Sale of Stock, Price Per Share \| $ / shares		$ 0.08
Common Stock Purchase Agreement, Purchase Price per Share, After Satisfaction of Certain Conditions \| $ / shares							$ 0.15
Common Stock Purchase Agreement, the Other Purchase Price per Share, No Later than 90 Days after Satisfaction of Certain Conditions \| $ / shares							$ 0.25
Common Stock Purchase Agreement, Value of Shares Authorized to Be Purchased No Later than 90 Days after Satisfaction of Certain Conditions \| $							$ 55,000
The 2016 Purchase Agreement [Member] \| Common Stock, Purchase Price per Share of $0.15 [Member]
Common Stock Purchase Agreement, Remaining Number of Shares to be Purchased, After the Satisfaction of Certain Conditions							200,000,000
The 2016 Purchase Agreement [Member] \| Common Stock, Purchase Price per Share of $0.25 [ Member]
Common Stock Purchase Agreement, Remaining Number of Shares to be Purchased, After the Satisfaction of Certain Conditions							100,000,000
Valencia Circle, LLC [Member]
Payments to Acquire Buildings \| $	$ 7,818
Engel [Member]
Supply and License Agreement, Term				5 years
Exclusive License Agreement, Term			10 years

Note 4 - Prepaid Expenses and Other Current Assets - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Prepaid service invoices	$ 26	$ 79
Prepaid manufacturing and mold costs	128	91
Prepaid insurance premiums	46	193
Total	$ 200	$ 363

Note 5 - Inventory - Schedule of Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Work in progress	$ 87	$ 31
Total	$ 87	$ 31

Note 6 - Property and Equipment, Net (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Depreciation, Total	$ 262	$ 252	$ 520	$ 483
Impairment of Intangible Assets, Finite-lived	1,676		1,676
Cost of Sales [Member]
Depreciation, Total	28	14	51	27
Selling, General and Administrative Expenses [Member]
Depreciation, Total	$ 234	$ 238	$ 469	$ 456

Note 6 - Property and Equipment, Net - Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Property and equipment, gross	$ 12,176	$ 15,247
Accumulated depreciation	(2,018)	(3,480)
Total property and equipment, net	10,158	11,767
Land, Buildings and Improvements [Member]
Property and equipment, gross	9,494	9,039
Machinery and Equipment [Member]
Property and equipment, gross	2,344	5,745
Computer Equipment [Member]
Property and equipment, gross	272	282
Office Equipment, Furnishings and Improvements [Member]
Property and equipment, gross	$ 66	$ 181

Note 7 - Patents and Trademarks, Net (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Intangible Assets, Net (Excluding Goodwill), Total	$ 280		$ 280		$ 322
Amortization of Intangible Assets, Total	$ 21	$ 22	$ 42	$ 42
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life			10 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life			17 years

Note 9 - Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Accrued payroll, vacation, and bonuses	$ 153	$ 178
Accrued severance and settlements	25	10
Accrued audit fees	50	82
Total	$ 228	$ 270

Note 11 - Stock Compensation Plans (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019	Dec. 31, 2018	Jan. 27, 2015	Apr. 04, 2002
Share-based Payment Arrangement, Expense	$ 160,000	$ 266,000	$ 342,000	$ 547,000
Share-based Payment Arrangement, Accelerated Cost	$ 0	$ 48,000	$ 0	$ 104,000
Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant								10,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance					169,000	169,000
Equity Incentive Plan 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant					30,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance	9,681,026		9,681,026			11,755,503
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			0
Equity Incentive Plan 2015 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant							40,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance	16,238,334		16,238,334			16,906,667
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			0

Note 12 - Consolidated Statements of Changes in Equity - Changes in Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Balance	$ 44,866	$ 51,915	$ 46,441	$ 53,755
Stock option exercises	3	5	14	47
Stock-based compensation	160	266	342	547
Net loss	(3,224)	(2,142)	(4,992)	(4,305)
Balance	$ 41,805	$ 50,044	$ 41,805	$ 50,044
Preferred Stock [Member]
Balance (in shares)
Stock option exercises (in shares)
Balance (in shares)
Common Stock [Member]
Balance (in shares)	914,316,624	909,183,592	914,206,832	908,768,116
Balance	$ 914	$ 909	$ 914	$ 909
Stock option exercises (in shares)	42,500	55,417	152,292	470,893
Stock option exercises
Stock-based compensation
Net loss
Balance (in shares)	914,359,124	909,239,009	914,359,124	909,239,009
Balance	$ 914	$ 909	$ 914	$ 909
Additional Paid in Capital, Attributable to Warrants [Member]
Balance	18,179	18,179	18,179	18,179
Stock option exercises
Stock-based compensation
Net loss
Balance	18,179	18,179	18,179	18,179
Additional Paid-in Capital [Member]
Balance	286,469	285,217	286,276	284,894
Stock option exercises	3	5	14	47
Stock-based compensation	160	266	342	547
Net loss
Balance	286,632	285,488	286,632	285,488
Retained Earnings [Member]
Balance	(260,622)	(252,317)	(258,854)	(250,154)
Stock option exercises
Stock-based compensation
Net loss	(3,223)	(2,142)	(4,991)	(4,305)
Balance	(263,845)	(254,459)	(263,845)	(254,459)
Noncontrolling Interest [Member]
Balance	(74)	(73)	(74)	(73)
Stock option exercises
Stock-based compensation
Net loss	(1)		(1)
Balance	$ (75)	$ (73)	$ (75)	$ (73)

Note 13 - Loss Per Common Share (Details Textual) - $ / shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	26,088,360	34,938,618
Share-based Payment Arrangement, Option [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance	$ 0.07	$ 0.07
Share-based Payment Arrangement, Option [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price, Ending Balance	$ 0.38	$ 0.47
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	10,066,809	10,066,809
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.07	$ 0.07

Note 14 - Commitments and Contingencies (Details Textual) - Settled Litigation [Member] - USD ($) $ in Thousands		3 Months Ended
	Apr. 30, 2019	Jun. 30, 2019
Loss Contingency, Damages Awarded, Value	$ 250
Loss Contingency Accrual, Payments		$ 250

Note 15 - Related Party Transactions (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019	Mar. 10, 2016
Chairman of Eontec [Member] \| Minimum [Member]
Beneficial Ownership Percentage					5.00%
Eontec [Member] \| License Agreement [Member]
Related Party Transaction, Amounts of Transaction	$ 0	$ 48,000	$ 0	$ 53,000
The 2016 Purchase Agreement [Member]
Common Stock Purchase Agreement, Number of Shares Authorized to Issue and Sell to Investors						405,000,000
Common Stock Purchase Agreement, Value of Shares Authorized to Issue and Sell to Investors						$ 63,400,000

Note 8 - Other Assets	6 Months Ended
Note 8 - Other Assets	Jun. 30, 2019
Notes to Financial Statements
Other Assets Disclosure [Text Block]	8. Other Assets Other assets totaled $14 and $14 as of June 30, 2019 and December 31, 2018, respectively, and consisted of long-term deposits.

Note 10 - Other Long-term Liabilities	6 Months Ended
Note 10 - Other Long-term Liabilities	Jun. 30, 2019
Notes to Financial Statements
Other Liabilities Disclosure [Text Block]	1 0 . Other Long- T erm L iabilities Other long-term liabilities were $856 as of June 30, 2019 and December 31, 2018, and consisted of long-term, aged payables to vendors, individuals, and other third parties that have been outstanding for more than 5 years. The Company is in the process of researching and resolving the balances for settlement and/or escheatment in accordance with applicable state law.

Note 14 - Commitments and Contingencies	6 Months Ended
Note 14 - Commitments and Contingencies	Jun. 30, 2019
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	1 4 . Commitments and Contingencies Legal Contingencies During October 2018, the Company received a notice of intent to sue from a former employee. The Claims raised in the notice included accusations of pay discrimination, employment misclassification, and unfair labor practices. On April 30, 2019 the Company reached a confidential settlement of the matter in the amount of $250 . This amount was included as a portion of sales, general, and administrative expense and was fully paid as of June 30, 2019. This amount was included as a portion of sales, general, and administrative expense and was fully paid as of June 30, 2019.

Note 10 - Other Long-term Liabilities (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Other Liabilities, Noncurrent, Total	$ 856	$ 856
Period for Outstanding Liability	5 years