001 - Statement - Consolidated Balance Sheets (Current Period Unaudited) link:presentationLink link:definitionLink link:calculationLink 002 - Statement - Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 003 - Statement - (Unaudited) Consolidated Statements of Operations link:presentationLink link:definitionLink link:calculationLink 004 - Statement - (Unaudited) Consolidated Statements of Other Comprehensive Income link:presentationLink link:definitionLink link:calculationLink 005 - Statement - (Unaudited) Consolidated Statements of Cash Flows link:presentationLink link:definitionLink link:calculationLink 006 - Disclosure - Note 1 - Summary of Significant Accounting Policies link:presentationLink link:definitionLink link:calculationLink 007 - Disclosure - Note 2 - Inventory link:presentationLink link:definitionLink link:calculationLink 008 - Disclosure - Note 3 - Property and Equipment link:presentationLink link:definitionLink link:calculationLink 009 - Disclosure - Note 4 - Investments link:presentationLink link:definitionLink link:calculationLink 010 - Disclosure - Note 5 - Definite-Life Intangible Assets link:presentationLink link:definitionLink link:calculationLink 011 - Disclosure - Note 6 - Leases link:presentationLink link:definitionLink link:calculationLink 012 - Disclosure - Note 7 - Agreements and Commitments link:presentationLink link:definitionLink link:calculationLink 013 - Disclosure - Note 8 - Income Taxes link:presentationLink link:definitionLink link:calculationLink 014 - Disclosure - Note 9 - Loss Per Share link:presentationLink link:definitionLink link:calculationLink 015 - Disclosure - Note 10 - Stockholders' Equity link:presentationLink link:definitionLink link:calculationLink 016 - Disclosure - Note 11 - Significant Customers/Concentration link:presentationLink link:definitionLink link:calculationLink 017 - Disclosure - Note 12 - Subsequent Events link:presentationLink link:definitionLink link:calculationLink 018 - Disclosure - Accounting Policies, by Policy (Policies) link:presentationLink link:definitionLink link:calculationLink 019 - Disclosure - Note 1 - Summary of Significant Accounting Policies (Tables) link:presentationLink link:definitionLink link:calculationLink 020 - Disclosure - Note 2 - Inventory (Tables) link:presentationLink link:definitionLink link:calculationLink 021 - Disclosure - Note 3 - Property and Equipment (Tables) link:presentationLink link:definitionLink link:calculationLink 022 - Disclosure - Note 4 - Investments (Tables) link:presentationLink link:definitionLink link:calculationLink 023 - Disclosure - Note 5 - Definite-Life Intangible Assets (Tables) link:presentationLink link:definitionLink link:calculationLink 024 - Disclosure - Note 6 - Leases (Tables) link:presentationLink link:definitionLink link:calculationLink 025 - Disclosure - Note 8 - Income Taxes (Tables) link:presentationLink link:definitionLink link:calculationLink 026 - Disclosure - Note 9 - Loss Per Share (Tables) link:presentationLink link:definitionLink link:calculationLink 027 - Disclosure - Note 10 - Stockholders' Equity (Tables) link:presentationLink link:definitionLink link:calculationLink 028 - Disclosure - Note 11 - Significant Customers/Concentration (Tables) link:presentationLink link:definitionLink link:calculationLink 029 - Disclosure - Note 1 - Summary of Significant Accounting Policies (Details) link:presentationLink link:definitionLink link:calculationLink 030 - Disclosure - Note 1 - Summary of Significant Accounting Policies (Details) - Allowance for Doubtful Accounts, Roll Forward link:presentationLink link:definitionLink link:calculationLink 031 - Disclosure - Note 2 - Inventory (Details) - Summary of Inventory link:presentationLink link:definitionLink link:calculationLink 032 - Disclosure - Note 3 - Property and Equipment (Details) link:presentationLink link:definitionLink link:calculationLink 033 - Disclosure - Note 3 - Property and Equipment (Details) - Property and Equipment link:presentationLink link:definitionLink link:calculationLink 034 - Disclosure - Note 4 - Investments (Details) link:presentationLink link:definitionLink link:calculationLink 035 - Disclosure - Note 4 - Investments (Details) - Summary of Level 1-3 Financial Assets and Liabilities link:presentationLink link:definitionLink link:calculationLink 036 - Disclosure - Note 5 - Definite-Life Intangible Assets (Details) link:presentationLink link:definitionLink link:calculationLink 037 - Disclosure - Note 5 - Definite-Life Intangible Assets (Details) - Expected Future Amortization Expense link:presentationLink link:definitionLink link:calculationLink 038 - Disclosure - Note 6 - Leases (Details) link:presentationLink link:definitionLink link:calculationLink 039 - Disclosure - Note 6 - Leases (Details) - Future Minimum Lease Payments for Non-Cancelable Operating Leases link:presentationLink link:definitionLink link:calculationLink 040 - Disclosure - Note 6 - Leases (Details) - Future Minimum Capital Lease Payments link:presentationLink link:definitionLink link:calculationLink 041 - Disclosure - Note 7 - Agreements and Commitments (Details) link:presentationLink link:definitionLink link:calculationLink 042 - Disclosure - Note 8 - Income Taxes (Details) link:presentationLink link:definitionLink link:calculationLink 043 - Disclosure - Note 8 - Income Taxes (Details) - Deferred Tax Asset (Liabilities) link:presentationLink link:definitionLink link:calculationLink 044 - Disclosure - Note 8 - Income Taxes (Details) - Reconciliation of Income Tax Expense link:presentationLink link:definitionLink link:calculationLink 045 - Disclosure - Note 8 - Income Taxes (Details) - Components of Income Tax Expense (Benefit) from Continuing Operations link:presentationLink link:definitionLink link:calculationLink 046 - Disclosure - Note 9 - Loss Per Share (Details) link:presentationLink link:definitionLink link:calculationLink 047 - Disclosure - Note 9 - Loss Per Share (Details) - Amounts Used in Computing Earnings Per Share link:presentationLink link:definitionLink link:calculationLink 048 - Disclosure - Note 10 - Stockholders' Equity (Details) link:presentationLink link:definitionLink link:calculationLink 049 - Disclosure - Note 10 - Stockholders' Equity (Details) - Warrants Outstanding link:presentationLink link:definitionLink link:calculationLink 050 - Disclosure - Note 10 - Stockholders' Equity (Details) - Assumptions Used to Calculate the Fair Values of Stock Options link:presentationLink link:definitionLink link:calculationLink 051 - Disclosure - Note 10 - Stockholders' Equity (Details) - Options Outstanding link:presentationLink link:definitionLink link:calculationLink 052 - Disclosure - Note 10 - Stockholders' Equity (Details) - Status of the Options Granted and Changes During the Year link:presentationLink link:definitionLink link:calculationLink 053 - Disclosure - Note 11 - Significant Customers/Concentration (Details) link:presentationLink link:definitionLink link:calculationLink 054 - Disclosure - Note 11 - Significant Customers/Concentration (Details) - Net Sales by Geographical Region link:presentationLink link:definitionLink link:calculationLink 055 - Disclosure - Note 11 - Significant Customers/Concentration (Details) - Sales by Product Line link:presentationLink link:definitionLink link:calculationLink 056 - Disclosure - Note 12 - Subsequent Events (Details) link:presentationLink link:definitionLink link:calculationLink 000 - Disclosure - Document And Entity Information link:presentationLink link:definitionLink link:calculationLink