001 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) link:presentationLink link:definitionLink link:calculationLink 002 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 003 - Statement - Condensed Consolidated Income Statements and Statements of Comprehensive Income (Loss) (Unaudited) link:presentationLink link:definitionLink link:calculationLink 004 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:definitionLink link:calculationLink 005 - Disclosure - Note 1 - Basis of Presentation link:presentationLink link:definitionLink link:calculationLink 006 - Disclosure - Note 2 - Prepaid Expenses and Other Assets link:presentationLink link:definitionLink link:calculationLink 007 - Disclosure - Note 3 - Property and Equipment link:presentationLink link:definitionLink link:calculationLink 008 - Disclosure - Note 4 - Stock-based Compensation link:presentationLink link:definitionLink link:calculationLink 009 - Disclosure - Note 5 - Income Taxes link:presentationLink link:definitionLink link:calculationLink 010 - Disclosure - Note 6 - Earnings Per Share link:presentationLink link:definitionLink link:calculationLink 011 - Disclosure - Note 7 - Comprehensive Income or Loss link:presentationLink link:definitionLink link:calculationLink 012 - Disclosure - Note 8 - Segment Information link:presentationLink link:definitionLink link:calculationLink 013 - Disclosure - Note 9 - Commitments and Contingencies link:presentationLink link:definitionLink link:calculationLink 014 - Disclosure - Note 2 - Prepaid Expenses and Other Assets (Tables) link:presentationLink link:definitionLink link:calculationLink 015 - Disclosure - Note 4 - Stock-based Compensation (Tables) link:presentationLink link:definitionLink link:calculationLink 016 - Disclosure - Note 6 - Earnings Per Share (Tables) link:presentationLink link:definitionLink link:calculationLink 017 - Disclosure - Note 8 - Segment Information (Tables) link:presentationLink link:definitionLink link:calculationLink 018 - Disclosure - Note 2 - Prepaid Expenses and Other Assets (Details) - Prepaid Expenses and Other Current Assets link:presentationLink link:definitionLink link:calculationLink 019 - Disclosure - Note 3 - Property and Equipment (Details) link:presentationLink link:definitionLink link:calculationLink 020 - Disclosure - Note 4 - Stock-based Compensation (Details) link:presentationLink link:definitionLink link:calculationLink 021 - Disclosure - Note 4 - Stock-based Compensation (Details) - Summary of the Balance and Activity for the Plans Related to Stock Options link:presentationLink link:definitionLink link:calculationLink 022 - Disclosure - Note 5 - Income Taxes (Details) link:presentationLink link:definitionLink link:calculationLink 023 - Disclosure - Note 6 - Earnings Per Share (Details) link:presentationLink link:definitionLink link:calculationLink 024 - Disclosure - Note 6 - Earnings Per Share (Details) - Computation Basic and Diluted Earnings Per Common Share link:presentationLink link:definitionLink link:calculationLink 025 - Disclosure - Note 7 - Comprehensive Income or Loss (Details) link:presentationLink link:definitionLink link:calculationLink 026 - Disclosure - Note 8 - Segment Information (Details) link:presentationLink link:definitionLink link:calculationLink 027 - Disclosure - Note 8 - Segment Information (Details) - Financial Information for the Company’s Reportable Segments link:presentationLink link:definitionLink link:calculationLink 028 - Disclosure - Note 8 - Segment Information (Details) - Sales to External Customers and Long-lived Assets by Geographic Area link:presentationLink link:definitionLink link:calculationLink 029 - Disclosure - Note 9 - Commitments and Contingencies (Details) link:presentationLink link:definitionLink link:calculationLink 000 - Disclosure - Document And Entity Information link:presentationLink link:definitionLink link:calculationLink