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 Income (Loss) and Comprehensive Income (Loss) ( Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Changes in Shareholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Disclosure - Note 1 - Basis of Presentation link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Debt link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Earnings Per Share link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Supplemental Balance Sheet Information link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Stock-based Compensation link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Operating Leases link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Revenue Recognition link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Business Segment Information link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 2 - Debt (Tables) link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 4 - Supplemental Balance Sheet Information (Tables) link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 5 - Stock-based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 7 - Operating Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 8 - Commitments and Contingencies (Tables) link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 10 - Business Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 1 - Basis of Presentation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 2 - Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 2 - Debt - Schedule of long term debt maturities (Details) link:calculationLink link:definitionLink link:presentationLink 026 - Disclosure - Note 3 - Earnings Per Share (Details Textual) link:calculationLink link:definitionLink link:presentationLink 027 - Disclosure - Note 4 - Supplemental Balance Sheet Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 028 - Disclosure - Note 4 - Supplemental Balance Sheet Information - Cash and Restricted Cash (Details) link:calculationLink link:definitionLink link:presentationLink 029 - Disclosure - Note 4 - Supplemental Balance Sheet Information - Components of Inventory (Details) link:calculationLink link:definitionLink link:presentationLink 030 - Disclosure - Note 4 - Supplemental Balance Sheet Information - Components of Property, Plant and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 031 - Disclosure - Note 4 - Supplemental Balance Sheet Information - Summary of Goodwill (Details) link:calculationLink link:definitionLink link:presentationLink 032 - Disclosure - Note 4 - Supplemental Balance Sheet Information - Composition of Intangible Assets (Details) link:calculationLink link:definitionLink link:presentationLink 033 - Disclosure - Note 4 - Supplemental Balance Sheet Information - Amortization of Intangible Assets (Details) link:calculationLink link:definitionLink link:presentationLink 034 - Disclosure - Note 5 - Stock-based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 035 - Disclosure - Note 5 - Stock-based Compensation - Non-cash Stock Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 036 - Disclosure - Note 5 - Stock-based Compensation - Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 037 - Disclosure - Note 6 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 038 - Disclosure - Note 7 - Operating Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 039 - Disclosure - Note 7 - Operating Leases - Lease Cost (Details) link:calculationLink link:definitionLink link:presentationLink 040 - Disclosure - Note 7 - Operating Leases - Supplement Cash Flow Information Related to Leases (Details) link:calculationLink link:definitionLink link:presentationLink 041 - Disclosure - Note 7 - Operating Leases - Supplemental Balance Sheet Information Related to Leases (Details) link:calculationLink link:definitionLink link:presentationLink 042 - Disclosure - Note 7 - Operating Leases - Future Minimum Lease Payments (Details) link:calculationLink link:definitionLink link:presentationLink 043 - Disclosure - Note 8 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 044 - Disclosure - Note 8 - Commitments and Contingencies - Changes in Product Warranty Liability (Details) link:calculationLink link:definitionLink link:presentationLink 045 - Disclosure - Note 9 - Revenue Recognition (Details Textual) link:calculationLink link:definitionLink link:presentationLink 046 - Disclosure - Note 10 - Business Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 047 - Disclosure - Note 10 - Business Segment Information - Segment Activity (Details) link:calculationLink link:definitionLink link:presentationLink 048 - Disclosure - Note 10 - Business Segment Information - Revenue by Business Segment Sector (Details) link:calculationLink link:definitionLink link:presentationLink