000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Consolidated Statements of Income link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Consolidated Statements of Comprehensive Income link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Consolidated Statements of Comprehensive Income (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Balance Sheets link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Balance Sheets (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 006 - Statement - Consolidated Statements of Cash Flows link:calculationLink link:definitionLink link:presentationLink 007 - Statement - Consolidated Statements of Changes in Shareholders' Equity link:calculationLink link:definitionLink link:presentationLink 995552 - Disclosure - Note 1 - General link:calculationLink link:definitionLink link:presentationLink 995553 - Disclosure - Note 2 - Property and Equipment link:calculationLink link:definitionLink link:presentationLink 995554 - Disclosure - Note 3 - Long-term Debt link:calculationLink link:definitionLink link:presentationLink 995555 - Disclosure - Note 4 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 995556 - Disclosure - Note 5 - Employee Benefit Plans link:calculationLink link:definitionLink link:presentationLink 995557 - Disclosure - Note 6 - Stock-based Compensation link:calculationLink link:definitionLink link:presentationLink 995558 - Disclosure - Note 7 - Segment and Geographic Data link:calculationLink link:definitionLink link:presentationLink 995559 - Disclosure - Note 8 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 995560 - Disclosure - Note 9 - Business Acquisitions link:calculationLink link:definitionLink link:presentationLink 995561 - Disclosure - Note 10 - Shareholders' Equity link:calculationLink link:definitionLink link:presentationLink 995562 - Disclosure - Note 11 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995566 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995567 - Disclosure - Note 1 - General (Tables) link:calculationLink link:definitionLink link:presentationLink 995568 - Disclosure - Note 2 - Property and Equipment (Tables) link:calculationLink link:definitionLink link:presentationLink 995569 - Disclosure - Note 4 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 995570 - Disclosure - Note 5 - Employee Benefit Plans (Tables) link:calculationLink link:definitionLink link:presentationLink 995571 - Disclosure - Note 6 - Stock-based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 995572 - Disclosure - Note 7 - Segment and Geographic Data (Tables) link:calculationLink link:definitionLink link:presentationLink 995573 - Disclosure - Note 8 - Commitments and Contingencies (Tables) link:calculationLink link:definitionLink link:presentationLink 995574 - Disclosure - Note 9 - Business Acquisitions (Tables) link:calculationLink link:definitionLink link:presentationLink 995575 - Disclosure - Note 1 - General 1 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995576 - Disclosure - Note 1 - General 2 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995577 - Disclosure - Note 1 - General 3 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995578 - Disclosure - Note 1 - General - Schedule of Allowance for Credit Loss on Account's Receivable (Details) link:calculationLink link:definitionLink link:presentationLink 995579 - Disclosure - Note 1 - General - Useful Lives of Property and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 995580 - Disclosure - Note 1 - General - Summary of Changes in Goodwill (Details) link:calculationLink link:definitionLink link:presentationLink 995581 - Disclosure - Note 1 - General - Summary of Intangible Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995582 - Disclosure - Note 1 - General - Schedule of Intangible Asset Amortization (Details) link:calculationLink link:definitionLink link:presentationLink 995583 - Disclosure - Note 1 - General - Summary of Net Sales by Revenue Recognition Method as a Percentage of Total Sales (Details) link:calculationLink link:definitionLink link:presentationLink 995584 - Disclosure - Note 1 - General - Computation of Basic and Diluted Earnings Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 995585 - Disclosure - Note 1 - General - Summary of Liabilities Current and Non-current (Details) link:calculationLink link:definitionLink link:presentationLink 995586 - Disclosure - Note 1 - General - Summary of Liabilities Current and Non-current (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 995587 - Disclosure - Note 2 - Property and Equipment 1 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995588 - Disclosure - Note 2 - Property and Equipment 2 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995589 - Disclosure - Note 2 - Property and Equipment - Schedule of Property and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 995590 - Disclosure - Note 3 - Long-term Debt (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995591 - Disclosure - Note 4 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995592 - Disclosure - Note 4 - Income Taxes - Schedule of Income before Income Tax, Domestic and Foreign (Details) link:calculationLink link:definitionLink link:presentationLink 995593 - Disclosure - Note 4 - Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) link:calculationLink link:definitionLink link:presentationLink 995594 - Disclosure - Note 4 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) link:calculationLink link:definitionLink link:presentationLink 995595 - Disclosure - Note 4 - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995596 - Disclosure - Note 4 - Income Taxes - Schedule of Income Taxes Paid, Net (Details) link:calculationLink link:definitionLink link:presentationLink 995597 - Disclosure - Note 5 - Employee Benefit Plans (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995598 - Disclosure - Note 5 - Employee Benefit Plans - The Changes in the Post-retirement Benefit Obligations (Details) link:calculationLink link:definitionLink link:presentationLink 995599 - Disclosure - Note 5 - Employee Benefit Plans - The Changes in the Post-retirement Benefit Obligations (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 995600 - Disclosure - Note 5 - Employee Benefit Plans - The Components of Net Periodic Post-retirement Benefit Cost and Other Amounts Recognized in Other Comprehensive Income (Details) link:calculationLink link:definitionLink link:presentationLink 995601 - Disclosure - Note 5 - Employee Benefit Plans - The Components of Net Periodic Post-retirement Benefit Cost and Other Amounts Recognized in Other Comprehensive Income (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 995602 - Disclosure - Note 5 - Employee Benefit Plans - Assumptions Used to Determine the Post-retirement Benefit Obligation and the Net Periodic Postretirement Benefit Cost (Details) link:calculationLink link:definitionLink link:presentationLink 995603 - Disclosure - Note 5 - Employee Benefit Plans - Expected Future Service Payments (Details) link:calculationLink link:definitionLink link:presentationLink 995604 - Disclosure - Note 6 - Stock-based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995605 - Disclosure - Note 6 - Stock-based Compensation - Summary of Restricted Stock Units (Details) link:calculationLink link:definitionLink link:presentationLink 995606 - Disclosure - Note 6 - Stock-based Compensation - Weighted Average Assumptions (Details) link:calculationLink link:definitionLink link:presentationLink 995607 - Disclosure - Note 6 - Stock-based Compensation - Summary of Stock Options (Details) link:calculationLink link:definitionLink link:presentationLink 995608 - Disclosure - Note 7 - Segment and Geographic Data (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995609 - Disclosure - Note 7 - Segment and Geographic Data - Schedule of Segment Reporting Information, by Segment (Details) link:calculationLink link:definitionLink link:presentationLink 995610 - Disclosure - Note 8 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995611 - Disclosure - Note 8 - Commitments and Contingencies - Components of Lease Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995612 - Disclosure - Note 8 - Commitments and Contingencies - Supplemental Cash Flow Information Related to Lease (Details) link:calculationLink link:definitionLink link:presentationLink 995613 - Disclosure - Note 8 - Commitments and Contingencies - The Minimum Future Annual Rental Payments Under Leases (Details) link:calculationLink link:definitionLink link:presentationLink 995614 - Disclosure - Note 9 - Business Acquisitions 1 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995615 - Disclosure - Note 9 - Business Acquisitions 2 (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995616 - Disclosure - Note 9 - Business Acquisitions - Summary of Purchase Price Allocation (Details) link:calculationLink link:definitionLink link:presentationLink 995617 - Disclosure - Note 9 - Business Acquisitions - Pro Forma Results (Details) link:calculationLink link:definitionLink link:presentationLink 995618 - Disclosure - Note 10 - Shareholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995619 - Disclosure - Note 11 - Subsequent Events (Details Textual) link:calculationLink link:definitionLink link:presentationLink