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 and Comprehensive Income (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statements of Shareholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Disclosure - Note 1 - Principles of Consolidation and Basis of Presentation link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Other Assets link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Earnings Per Share link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Stock Options and Restricted Stock Awards link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Financial Instruments and Fair Value link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Segment Information link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Revenue link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Leases link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Accumulated Other Comprehensive (Loss) Income link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Accounts Receivable and Allowance for Credit Losses link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 4 - Earnings Per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 7 - Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 9 - Revenue (Tables) link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 10 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 11 - Accumulated Other Comprehensive (Loss) Income (Tables) link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 12 - Accounts Receivable and Allowance for Credit Losses (Tables) link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Note 2 - Other Assets (Details Textual) link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 4 - Earnings Per Share - Earnings Per Share Calculation (Details) link:calculationLink link:definitionLink link:presentationLink 026 - Disclosure - Note 4 - Earnings Per Share - Anti-dilutive Securities (Details) link:calculationLink link:definitionLink link:presentationLink 027 - Disclosure - Note 5 - Stock Options and Restricted Stock Awards (Details Textual) link:calculationLink link:definitionLink link:presentationLink 028 - Disclosure - Note 7 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 029 - Disclosure - Note 7 - Segment Information - Segment Reporting Information (Details) link:calculationLink link:definitionLink link:presentationLink 030 - Disclosure - Note 8 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 031 - Disclosure - Note 9 - Revenue - Disaggregated Revenue by Revenue Source (Details) link:calculationLink link:definitionLink link:presentationLink 032 - Disclosure - Note 10 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 033 - Disclosure - Note 10 - Leases - Rental Income (Details) link:calculationLink link:definitionLink link:presentationLink 034 - Disclosure - Note 11 - Accumulated Other Comprehensive (Loss) Income (Details Textual) link:calculationLink link:definitionLink link:presentationLink 035 - Disclosure - Note 11 - Accumulated Other Comprehensive (Loss) Income - Components of Accumulated Other Comprehensive Income (Details) link:calculationLink link:definitionLink link:presentationLink 036 - Disclosure - Note 12 - Accounts Receivable and Allowance for Credit Losses - Allowance for Accounts Receivable (Details) link:calculationLink link:definitionLink link:presentationLink