000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Condensed Consolidated Statements of Operations (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:calculationLink link:definitionLink link:presentationLink 006 - Disclosure - Note 1 - Basis of Presentation link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Segment Information link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Investments link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Fair Value Measurements link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Variable Interest Entities link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Related Party Transactions link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Stock-based Compensation link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Earnings Per Share ("EPS") link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Contingencies link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 13 - Other Financial Statement Information link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 14 - Domestic and Foreign Revenues link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 15 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995467 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995468 - Disclosure - Note 3 - Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995469 - Disclosure - Note 4 - Investments (Tables) link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Note 5 - Fair Value Measurements (Tables) link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Note 6 - Variable Interest Entities (Tables) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 7 - Related Party Transactions (Tables) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 9 - Stock-based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 10 - Stockholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 11 - Earnings Per Share ("EPS") (Tables) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 13 - Other Financial Statement Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 14 - Domestic and Foreign Revenues (Tables) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 3 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 3 - Segment Information - Schedule of Segment Reporting Information (Details) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 3 - Segment Information - Schedule of Other Segment Disclosures (Details) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 3 - Segment Information - Assets and Capital Expenditures (Details) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 4 - Investments - Details of Marketable Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 4 - Investments - Net Investment Income (Details) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 4 - Investments - Net Gain (Losses) (Details) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 5 - Fair Value Measurements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 5 - Fair Value Measurements - Assets Measured at Fair Value on Recurring Basis (Details) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 6 - Variable Interest Entities (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 6 - Variable Interest Entities - VIEs (Details) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 7 - Related Party Transactions (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 7 - Related Party Transactions - Transactions With Related Parties (Details) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 8 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 9 - Stock-based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 9 - Stock-based Compensation - Stock-based Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 9 - Stock-based Compensation - Restricted Stock Awards (Details) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 9 - Stock-Based Compensation - Valuation Assumptions (Details) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 9 - Stock-Based Compensation - Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 10 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995498 - Disclosure - Note 10 - Stockholders' Equity - Rollforward of Outstanding Shares (Details) link:calculationLink link:definitionLink link:presentationLink 995499 - Disclosure - Note 11 - Earnings Per Share ("EPS") (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995500 - Disclosure - Note 11 - Earnings Per Share ("EPS") - Reconciliation of Basic to Diluted Weighted Average Shares Outstanding (Details) link:calculationLink link:definitionLink link:presentationLink 995501 - Disclosure - Note 13 - Other Financial Statement Information - Schedule of Components of Inventory (Details) link:calculationLink link:definitionLink link:presentationLink 995502 - Disclosure - Note 13 - Other Financial Statement Information - Intangible Assets, Net (Details) link:calculationLink link:definitionLink link:presentationLink 995503 - Disclosure - Note 14 - Domestic and Foreign Revenues - Schedule of Revenues (Details) link:calculationLink link:definitionLink link:presentationLink