000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Consolidated Balance Sheets link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Consolidated Balance Sheets (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Consolidated Statements of Income and Comprehensive Income link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statements of Changes in Shareholders' Equity link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Cash Flows link:calculationLink link:definitionLink link:presentationLink 006 - Disclosure - Note 1 - Summary of Operations and Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Acquisition link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Debt link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Share Repurchase Program link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Supplemental Balance Sheet Information link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Shareholders' Equity link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Operating Leases link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - 401(k) Retirement Benefit Plan link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Business Segment Information link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Impact of COVID-19 link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 1 - Summary of Operations and Significant Accounting Policies (Tables) link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 2 - Acquisition (Tables) link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 5 - Supplemental Balance Sheet Information (Tables) link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 6 - Commitments and Contingencies (Tables) link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 7 - Shareholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 8 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 9 - Operating Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 026 - Disclosure - Note 11 - Business Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 027 - Disclosure - Note 1 - Summary of Operations and Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 028 - Disclosure - Note 1 - Summary of Operations and Significant Accounting Policies - Property, Plant and Equipment Estimated Useful Life (Details) link:calculationLink link:definitionLink link:presentationLink 029 - Disclosure - Note 2 - Acquisition (Details Textual) link:calculationLink link:definitionLink link:presentationLink 030 - Disclosure - Note 2 - Acquisition - Assets Acquired and Liabilities Assumed (Details) link:calculationLink link:definitionLink link:presentationLink 031 - Disclosure - Note 2 - Acquisition - Pro Forma Information (Details) link:calculationLink link:definitionLink link:presentationLink 032 - Disclosure - Note 3 - Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 033 - Disclosure - Note 4 - Share Repurchase Program (Details Textual) link:calculationLink link:definitionLink link:presentationLink 034 - Disclosure - Note 5 - Supplemental Balance Sheet Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 035 - Disclosure - Note 5 - Supplemental Balance Sheet Information - Cash and Restricted Cash (Details) link:calculationLink link:definitionLink link:presentationLink 036 - Disclosure - Note 5 - Supplemental Balance Sheet Information - Components of Inventory (Details) link:calculationLink link:definitionLink link:presentationLink 037 - Disclosure - Note 5 - Supplemental Balance Sheet Information - Components of Property, Plant and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 038 - Disclosure - Note 5 - Supplemental Balance Sheet Information - Summary of Goodwill (Details) link:calculationLink link:definitionLink link:presentationLink 039 - Disclosure - Note 5 - Supplemental Balance Sheet Information - Composition of Intangible Assets (Details) link:calculationLink link:definitionLink link:presentationLink 040 - Disclosure - Note 5 - Supplemental Balance Sheet Information - Amortization of Intangible Assets (Details) link:calculationLink link:definitionLink link:presentationLink 041 - Disclosure - Note 6 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 042 - Disclosure - Note 6 - Commitments and Contingencies - Changes in Produce Warranty Liability (Details) link:calculationLink link:definitionLink link:presentationLink 043 - Disclosure - Note 7 - Shareholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 044 - Disclosure - Note 7 - Stock-based Compensation - Non-cash Stock Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 045 - Disclosure - Note 7 - Stock-based Compensation - Stock Option Assumptions (Details) link:calculationLink link:definitionLink link:presentationLink 046 - Disclosure - Note 7 - Shareholders' Equity - Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 047 - Disclosure - Note 7 - Shareholders' Equity - Options Range of Exercise Prices (Details) link:calculationLink link:definitionLink link:presentationLink 048 - Disclosure - Note 8 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 049 - Disclosure - Note 8 - Income Taxes - Income Tax Expense (Details) link:calculationLink link:definitionLink link:presentationLink 050 - Disclosure - Note 8 - Income Taxes - Deferred Tax Assets and Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 051 - Disclosure - Note 8 - Income Taxes - Net Deferred Tax Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 052 - Disclosure - Note 8 - Income Taxes - United States and Foreign Income (Loss) From Continuing Operations Before Income Taxes (Details) link:calculationLink link:definitionLink link:presentationLink 053 - Disclosure - Note 8 - Income Taxes - Effective Rate Reconciliation (Details) link:calculationLink link:definitionLink link:presentationLink 054 - Disclosure - Note 9 - Operating Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 055 - Disclosure - Note 9 - Operating Leases - Lease Cost (Details) link:calculationLink link:definitionLink link:presentationLink 056 - Disclosure - Note 9 - Operating Leases - Supplement Cash Flow Information Related to Leases (Details) link:calculationLink link:definitionLink link:presentationLink 057 - Disclosure - Note 9 - Operating Leases - Supplemental Balance Sheet Information Related to Leases (Details) link:calculationLink link:definitionLink link:presentationLink 058 - Disclosure - Note 9 - Operating Leases - Future Minimum Lease Payments (Details) link:calculationLink link:definitionLink link:presentationLink 059 - Disclosure - Note 10 - 401(k) Retirement Benefit Plan (Details Textual) link:calculationLink link:definitionLink link:presentationLink 060 - Disclosure - Note 11 - Business Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 061 - Disclosure - Note 11 - Business Segment Information - Segment Activity (Details) link:calculationLink link:definitionLink link:presentationLink 062 - Disclosure - Note 11 - Business Segment Information - Revenue by Business Segment Sector (Details) link:calculationLink link:definitionLink link:presentationLink 063 - Disclosure - Note 11 - Business Segment Information - Domestic and International Revenue by Segment (Details) link:calculationLink link:definitionLink link:presentationLink