000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Consolidated Statements of Operations link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Consolidated Balance Sheets link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Consolidated Balance Sheets (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Financial Statements of Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Cash Flows link:calculationLink link:definitionLink link:presentationLink 995554 - Disclosure - Note 1 - Business link:calculationLink link:definitionLink link:presentationLink 995555 - Disclosure - Note 2 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 995556 - Disclosure - Note 3 - Inventories link:calculationLink link:definitionLink link:presentationLink 995557 - Disclosure - Note 4 - Property and Equipment, Net link:calculationLink link:definitionLink link:presentationLink 995558 - Disclosure - Note 5 - Lines of Credit link:calculationLink link:definitionLink link:presentationLink 995559 - Disclosure - Note 6 - Interest Expense link:calculationLink link:definitionLink link:presentationLink 995560 - Disclosure - Note 7 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 995561 - Disclosure - Note 8 - Profit-sharing Plan link:calculationLink link:definitionLink link:presentationLink 995562 - Disclosure - Note 9 - Significant Risks and Uncertainties link:calculationLink link:definitionLink link:presentationLink 995563 - Disclosure - Note 10 - Lease Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 995564 - Disclosure - Note 11 - Related Party Transactions link:calculationLink link:definitionLink link:presentationLink 995565 - Disclosure - Note 12 - Equity Transactions and Stock-based Compensation link:calculationLink link:definitionLink link:presentationLink 995566 - Disclosure - Note 13 - Segment Information link:calculationLink link:definitionLink link:presentationLink 995567 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995568 - Disclosure - Note 3 - Inventories (Tables) link:calculationLink link:definitionLink link:presentationLink 995569 - Disclosure - Note 4 - Property and Equipment, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 995570 - Disclosure - Note 6 - Interest Expense (Tables) link:calculationLink link:definitionLink link:presentationLink 995571 - Disclosure - Note 7 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 995572 - Disclosure - Note 10 - Lease Commitments and Contingencies (Tables) link:calculationLink link:definitionLink link:presentationLink 995573 - Disclosure - Note 12 - Equity Transactions and Stock-based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 995574 - Disclosure - Note 13 - Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995575 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995576 - Disclosure - Note 3 - Inventories - Inventories (Details) link:calculationLink link:definitionLink link:presentationLink 995577 - Disclosure - Note 4 - Property and Equipment, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995578 - Disclosure - Note 4 - Property and Equipment, Net - Property and Equipment, Net (Details) link:calculationLink link:definitionLink link:presentationLink 995579 - Disclosure - Note 5 - Lines of Credit (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995580 - Disclosure - Note 6 - Interest Expense (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995581 - Disclosure - Note 6 - Interest Expense - Interest Expense Components (Details) link:calculationLink link:definitionLink link:presentationLink 995582 - Disclosure - Note 7 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995583 - Disclosure - Note 7 - Income Taxes - Reconciliation of the Statutory Tax Rate to the Effective Tax Rate (Details) link:calculationLink link:definitionLink link:presentationLink 995584 - Disclosure - Note 7 - Income Taxes - Components of the Provision for Income Taxes (Details) link:calculationLink link:definitionLink link:presentationLink 995585 - Disclosure - Note 7 - Income Taxes - Significant Components of Deferred Tax Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995586 - Disclosure - Note 8 - Profit-sharing Plan (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995587 - Disclosure - Note 9 - Significant Risks and Uncertainties (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995588 - Disclosure - Note 10 - Lease Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995589 - Disclosure - Note 10 - Lease Commitments and Contingencies - Lease Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995590 - Disclosure - Note 10 - Lease Commitments and Contingencies - Leases and Commitments (Details) link:calculationLink link:definitionLink link:presentationLink 995591 - Disclosure - Note 10 - Lease Commitments and Contingencies - Supplemental Cash Flow Information (Details) link:calculationLink link:definitionLink link:presentationLink 995592 - Disclosure - Note 10 - Lease Commitments and Contingencies - Minimum Rental Commitment for Long-term Non-cancelable Leases (Details) link:calculationLink link:definitionLink link:presentationLink 995593 - Disclosure - Note 12 - Equity Transactions and Stock-based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995594 - Disclosure - Note 12 - Equity Transactions and Stock-based Compensation - Fair Value of Stock Option Using Black-Scholes Option Pricing Model (Details) link:calculationLink link:definitionLink link:presentationLink 995595 - Disclosure - Note 12 - Equity Transactions and Stock-based Compensation - Summary of the Company's Stock Option Activity, and Related Information (Details) link:calculationLink link:definitionLink link:presentationLink 995596 - Disclosure - Note 12 - Equity Transactions and Stock-based Compensation - Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range (Details) link:calculationLink link:definitionLink link:presentationLink 995597 - Disclosure - Note 13 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995598 - Disclosure - Note 13 - Segment Information - Operations by Business Segment (Details) link:calculationLink link:definitionLink link:presentationLink