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 (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statements of Comprehensive Income (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Comprehensive Income (Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 006 - Statement - Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 007 - Statement - Consolidated Statements of Changes in Stockholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 008 - Statement - Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 1 - Business and Basis of Presentation link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 2 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 3 - Fair Value of Financial Instruments link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 4 - Inventories link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 5 - Other Current Assets link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 6 - Property, Plant and Equipment link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 7 - Other Assets link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 8 - Accrued Liabilities link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 9 - Notes Payable and Long-term Debt link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 10 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 11 - Share Incentive Plans link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 12 - Contingencies link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 13 - Income Per Share link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 14 - Segment Information link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 15 - Dividends and Shares Repurchases 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 4 - Inventories (Tables) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 5 - Other Current Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 6 - Property, Plant and Equipment (Tables) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 7 - Other Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 8 - Accrued Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 9 - Notes Payable and Long-term Debt (Tables) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 11 - Share Incentive Plans (Tables) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 13 - Income Per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 14 - Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 1 - Business and Basis of Presentation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 2 - Summary of Significant Accounting Policies - Fair Value of MSA Escrow Account (Details) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 2 - Summary of Significant Accounting Policies - Maturities of Debt Securities Held in MSA Escrow Account (Details) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 2 - Summary of Significant Accounting Policies - Schedule of MSA Escrow Deposits By Year (Details) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 3 - Fair Value of Financial Instruments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 4 - Inventories (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 4 - Inventories - Schedule of Inventory Balances (Details) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 5 - Other Current Assets - Schedule of Other Current Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 6 - Property, Plant and Equipment - Schedule of Property, Plant, and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 7 - Other Assets (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 7 - Other Assets - Schedule of Other Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 7 - Other Assets - Schedule of Available-for-Sale Debt Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 7 - Other Assets - Schedule of Maturities of Available-for-sale Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 8 - Accrued Liabilities - Schedule of Accrued Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 9 - Notes Payable and Long-term Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 9 - Notes Payable and Long-term Debt - Schedule of Notes Payable and Long-term Debt (Details) link:calculationLink link:definitionLink link:presentationLink 995498 - Disclosure - Note 9 - Notes Payable and Long-Term Debt - Components of Interest Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995499 - Disclosure - Note 9 - Notes Payable and Long-term Debt - Schedule of Excess Availability (Details) link:calculationLink link:definitionLink link:presentationLink 995500 - Disclosure - Note 9 - Notes Payable and Long-term Debt - Schedule of Excess Availability (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 995501 - Disclosure - Note 10 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995502 - Disclosure - Note 11 - Share Incentive Plans (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995503 - Disclosure - Note 11 - Share Incentive Plans - Summary of Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995504 - Disclosure - Note 11 - Share Incentive Plans - Summary of Stock Option Plans (Details) link:calculationLink link:definitionLink link:presentationLink 995505 - Disclosure - Note 11 - Share Incentive Plans - Summary of Performance Shares (Details) link:calculationLink link:definitionLink link:presentationLink 995506 - Disclosure - Note 11 - Share Incentive Plans - Summary of Restricted Stock Units (Details) link:calculationLink link:definitionLink link:presentationLink 995507 - Disclosure - Note 13 - Income Per Share - Reconciliation of Basic and Diluted Earnings Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 995508 - Disclosure - Note 14 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995509 - Disclosure - Note 14 - Segment Information - Summary of Reportable Segments (Details) link:calculationLink link:definitionLink link:presentationLink 995510 - Disclosure - Note 14 - Segment Information - Disaggregation of Revenue by Geographic Area (Details) link:calculationLink link:definitionLink link:presentationLink 995511 - Disclosure - Note 15 - Dividends and Shares Repurchases (Details Textual) link:calculationLink link:definitionLink link:presentationLink