000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Consolidated Balance Sheets (Current Period Unaudited) link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Consolidated Statements of Operations (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statements of Shareholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Comprehensive Loss (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Statement - Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 1 - Description of Business link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 2 - Basis of Presentation and Recent Accounting Pronouncements link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 3 - Significant Transactions link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 4 - Investments in Debt Securities link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 5 - Trade Accounts Receivable link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 6 - Prepaid Expenses and Other Current Assets link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 7 - Inventories link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 8 - Property and Equipment link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 9 - Patents and Trademarks, Net link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 10 - Other Assets link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 11 - Accrued Liabilities link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 12 - Other Current Liabilities link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 13 - Stock Compensation Plans link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 14 - Facility Leases link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 15 - Operating Lease link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 16 - Loss Per Common Share link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 17 - Related Party Transactions link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 18 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 2 - Basis of Presentation and Recent Accounting Pronouncements (Tables) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 4 - Investments in Debt Securities (Tables) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 5 - Trade Accounts Receivable (Tables) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 6 - Prepaid Expenses and Other Current Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 7 - Inventories (Tables) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 8 - Property and Equipment (Tables) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 9 - Patents and Trademarks, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 10 - Other Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 11 - Accrued Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 14 - Facility Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 15 - Operating Lease (Tables) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 2 - Basis of Presentation and Recent Accounting Pronouncements - Fair Value of Items Measured on a Recurring Basis (Details) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 3 - Significant Transactions (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 4 - Investments in Debt Securities (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 4 - Investments in Debt Securities - Amortized Cost and Fair Value of Investments in Debt Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 5 - Trade Accounts Receivable - Trade Accounts Receivable Table (Details) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 6 - Prepaid Expenses and Other Current Assets - Prepaid Expenses and Other Current Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 7 - Inventories - Schedule of Inventory (Details) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 8 - Property and Equipment (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 8 - Property and Equipment - Property and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 9 - Patents and Trademarks, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 9 - Patents and Trademarks, Net - Patents and Trademarks (Details) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 10 - Other Assets - Other Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 11 - Accrued Liabilities - Schedule of Accrued Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 12 - Other Current Liabilities (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 13 - Stock Compensation Plans (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995498 - Disclosure - Note 14 - Facility Leases - Base Rents (Details) link:calculationLink link:definitionLink link:presentationLink 995499 - Disclosure - Note 15 - Operating Lease (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995500 - Disclosure - Note 15 - Operating Lease - Components of Lease Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995501 - Disclosure - Note 16 - Loss Per Common Share (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995502 - Disclosure - Note 17 - Related Party Transactions (Details Textual) link:calculationLink link:definitionLink link:presentationLink