000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Consolidated Balance Sheets link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Consolidated Balance Sheets (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Consolidated Statements of Operations and Comprehensive Income link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statements of Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Cash Flows link:calculationLink link:definitionLink link:presentationLink 995555 - Disclosure - Note 1 - Description of Business and Basis of Preparation link:calculationLink link:definitionLink link:presentationLink 995556 - Disclosure - Note 2 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 995557 - Disclosure - Note 3 - Revenue link:calculationLink link:definitionLink link:presentationLink 995558 - Disclosure - Note 4 - Leases link:calculationLink link:definitionLink link:presentationLink 995559 - Disclosure - Note 5 - Prepaid Expenses and Other Current Assets link:calculationLink link:definitionLink link:presentationLink 995560 - Disclosure - Note 6 - Property and Equipment, Net link:calculationLink link:definitionLink link:presentationLink 995561 - Disclosure - Note 7 - Accrued Expenses link:calculationLink link:definitionLink link:presentationLink 995562 - Disclosure - Note 8 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 995563 - Disclosure - Note 9 - Line of Credit link:calculationLink link:definitionLink link:presentationLink 995564 - Disclosure - Note 10 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 995565 - Disclosure - Note 11 - Net Income Per Share link:calculationLink link:definitionLink link:presentationLink 995566 - Disclosure - Note 12 - Stock Incentive Plans link:calculationLink link:definitionLink link:presentationLink 995567 - Disclosure - Note 13 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 995568 - Disclosure - Note 14 - Major Vendors link:calculationLink link:definitionLink link:presentationLink 995569 - Disclosure - Note 15 - Segment Information link:calculationLink link:definitionLink link:presentationLink 995570 - Disclosure - Note 16 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995571 - Disclosure - Schedule II - Valuation and Qualifying Accounts link:calculationLink link:definitionLink link:presentationLink 995572 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995573 - Disclosure - Note 3 - Revenue (Tables) link:calculationLink link:definitionLink link:presentationLink 995574 - Disclosure - Note 4 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995575 - Disclosure - Note 5 - Prepaid Expenses and Other Current Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995576 - Disclosure - Note 6 - Property and Equipment, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 995577 - Disclosure - Note 7 - Accrued Expenses (Tables) link:calculationLink link:definitionLink link:presentationLink 995578 - Disclosure - Note 8 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 995579 - Disclosure - Note 11 - Net Income Per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995580 - Disclosure - Note 12 - Stock Incentive Plans (Tables) link:calculationLink link:definitionLink link:presentationLink 995581 - Disclosure - Note 13 - Stockholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995582 - Disclosure - Note 15 - Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995583 - Disclosure - Schedule II - Valuation and Qualifying Accounts (Tables) link:calculationLink link:definitionLink link:presentationLink 995584 - Disclosure - Note 1 - Description of Business and Basis of Preparation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995585 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995586 - Disclosure - Note 3 - Revenue (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995587 - Disclosure - Note 3 - Revenue - Allowance for Expected Credit Losses (Details) link:calculationLink link:definitionLink link:presentationLink 995588 - Disclosure - Note 4 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995589 - Disclosure - Note 4 - Leases - Lease Costs (Details) link:calculationLink link:definitionLink link:presentationLink 995590 - Disclosure - Note 4 - Leases - Reconciliation of the Undiscounted Cash Flows From Operating Leases (Details) link:calculationLink link:definitionLink link:presentationLink 995591 - Disclosure - Note 5 - Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995592 - Disclosure - Note 5 - Prepaid Expenses and Other Current Assets - Other Noncurrent Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995593 - Disclosure - Note 6 - Property and Equipment, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995594 - Disclosure - Note 6 - Property and Equipment, Net - Property and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 995595 - Disclosure - Note 7 - Accrued Expenses (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995596 - Disclosure - Note 7 - Accrued Expenses - Summary of Accrued Expenses (Details) link:calculationLink link:definitionLink link:presentationLink 995597 - Disclosure - Note 8 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995598 - Disclosure - Note 8 - Income Taxes - Income before Income Taxes from Domestic and Foreign Operations (Details) link:calculationLink link:definitionLink link:presentationLink 995599 - Disclosure - Note 8 - Income Taxes - Components of the Provision for Income Taxes (Details) link:calculationLink link:definitionLink link:presentationLink 995600 - Disclosure - Note 8 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) link:calculationLink link:definitionLink link:presentationLink 995601 - Disclosure - Note 8 - Income Taxes - Income Taxes Paid (Details) link:calculationLink link:definitionLink link:presentationLink 995602 - Disclosure - Note 8 - Income Taxes - Deferred Tax Assets and Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995603 - Disclosure - Note 8 - Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) link:calculationLink link:definitionLink link:presentationLink 995604 - Disclosure - Note 8 - Income Taxes - Open Tax Year (Details) link:calculationLink link:definitionLink link:presentationLink 995605 - Disclosure - Note 9 - Line of Credit (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995606 - Disclosure - Note 10 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995607 - Disclosure - Note 11 - Net Income Per Share (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995608 - Disclosure - Note 11 - Net Income Per Share - Computation Basic and Diluted Earnings Per Common Share (Details) link:calculationLink link:definitionLink link:presentationLink 995609 - Disclosure - Note 12 - Stock Incentive Plans (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995610 - Disclosure - Note 12 - Stock Incentive Plans - Activity for Stock Options (Details) link:calculationLink link:definitionLink link:presentationLink 995611 - Disclosure - Note 12 - Stock Incentive Plans - Activity for Restricted Stock (Details) link:calculationLink link:definitionLink link:presentationLink 995612 - Disclosure - Note 13 - Stockholders' Equity - Summary Changes in Outstanding Shares of Common Stock (Details) link:calculationLink link:definitionLink link:presentationLink 995613 - Disclosure - Note 14 - Major Vendors (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995614 - Disclosure - Note 15 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995615 - Disclosure - Note 15 - Segment Information - Financial Information for the Company's Reportable Segments (Details) link:calculationLink link:definitionLink link:presentationLink 995616 - Disclosure - Note 15 - Segment Information - Sales to External Customers and Long-lived Assets by Geographic Area (Details) link:calculationLink link:definitionLink link:presentationLink 995617 - Disclosure - Schedule II - Valuation and Qualifying Accounts - Summary of Valuation and Qualifying Accounts (Details) link:calculationLink link:definitionLink link:presentationLink