000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Condensed Consolidated Statements of Operations (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Disclosure - Note 1 - Description of the Company link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Disaggregation of Revenue link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Receivables link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Contract Receivables, Contract Assets and Contract Liabilities link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Net Income Per Share of Common Stock link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Inventory link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Accrued Expenses link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Assets Held for Lease link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Product Warranty link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Loan and Credit Agreements link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 13 - Related Party Transactions link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 14 - Leases link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 15 - Equity Incentive Plan and Stock Based Compensation link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 16 - Disclosures About the Fair Value of Financial Instruments link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 17 - Segment Information link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 18 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Tables) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 3 - Disaggregation of Revenue (Tables) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 4 - Receivables (Tables) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 5 - Contract Receivables, Contract Assets and Contract Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 6 - Net Income Per Share of Common Stock (Tables) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 7 - Inventory (Tables) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 8 - Accrued Expenses (Tables) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 9 - Assets Held for Lease (Tables) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 10 - Product Warranty (Tables) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 11 - Loan and Credit Agreements (Tables) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 14 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 15 - Equity Incentive Plan and Stock Based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 17 - Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 1 - Description of the Company (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 2 - Summary of Significant Accounting Policies - Summary of Amounts Recorded on Operating Segments Related to ERC Refunds (Details) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 3 - Disaggregation of Revenue (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 3 - Disaggregation of Revenue - Disaggregated Revenue From External Customers (Details) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 4 - Receivables - Activity in the Allowance for Credit Losses (Details) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 5 - Contract Receivables, Contract Assets and Contract Liabilities (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 5 - Contract Receivables, Contract Assets and Contract Liabilities - Contract With Customers (Details) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 6 - Net Income Per Share of Common Stock - Basic and Diluted Earnings Per Common Share (Details) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 7 - Inventory - Major Classes of Inventory (Details) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 8 - Accrued Expenses - Major Components of Accrued Expenses (Details) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 9 - Assets Held for Lease (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 9 - Assets Held for Lease - Summary of Assets Held for Lease (Details) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 10 - Product Warranty (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995498 - Disclosure - Note 10 - Product Warranty - Changes in Product Warranty Liability (Details) link:calculationLink link:definitionLink link:presentationLink 995499 - Disclosure - Note 11 - Loan and Credit Agreements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995500 - Disclosure - Note 11 - Loan and Credit Agreements - Summary of Term Debt (Details) link:calculationLink link:definitionLink link:presentationLink 995501 - Disclosure - Note 11 - Loan and Credit Agreements - Summary of Term Debt (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 995502 - Disclosure - Note 11 - Loan and Credit Agreements - Summary of Minimum Maturities of Term Debt (Details) link:calculationLink link:definitionLink link:presentationLink 995503 - Disclosure - Note 13 - Related Party Transactions (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995504 - Disclosure - Note 14 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995505 - Disclosure - Note 14 - Leases - Components of Finance Leases (Details) link:calculationLink link:definitionLink link:presentationLink 995506 - Disclosure - Note 15 - Equity Incentive Plan and Stock Based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995507 - Disclosure - Note 15 - Equity Incentive Plan and Stock Based Compensation - Summary of Shares Issued (Details) link:calculationLink link:definitionLink link:presentationLink 995508 - Disclosure - Note 17 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995509 - Disclosure - Note 17 - Segment Information - Segment Reporting Information (Details) link:calculationLink link:definitionLink link:presentationLink