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 Changes in 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 - Organization and Description of Business and Recent Developments link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Liquidity and Capital Resources link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 3 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Marketable Securities link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Long-Term Equity Investments link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Notes Receivable link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Fair Value of Financial Assets and Liabilities link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Prepaid Expenses and Other Assets link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Leases link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Net Loss per Share link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Stockholders' Equity and Convertible Preferred Stock link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Revenue link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 13 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 14 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 15 - Regulatory link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 16 - Related Party Transactions link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 17 - Segment Reporting link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 18 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Note 4 - Marketable Securities (Tables) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 5 - Long-Term Equity Investments (Tables) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 7 - Fair Value of Financial Assets and Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 8 - Prepaid Expenses and Other Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 9 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 10 - Net Loss per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 11 - Stockholders' Equity and Convertible Preferred Stock (Tables) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 12 - Revenue (Tables) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 14 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 17 - Segment Reporting (Tables) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 1 - Organization and Description of Business and Recent Developments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 2 - Liquidity and Capital Resources (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 3 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995484 - Disclosure - Note 4 - Marketable Securities - Schedule of Marketable Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995485 - Disclosure - Note 5 - Long-Term Equity Investments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995486 - Disclosure - Note 5 - Long-Term Equity Investments - Schedule of Long-Term Equity Investments (Details) link:calculationLink link:definitionLink link:presentationLink 995487 - Disclosure - Note 6 - Notes Receivable (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995488 - Disclosure - Note 7 - Fair Value of Financial Assets and Liabilities (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995489 - Disclosure - Note 7 - Fair Value of Financial Assets and Liabilities - Assets and Liabilities at Fair Value (Details) link:calculationLink link:definitionLink link:presentationLink 995490 - Disclosure - Note 7 - Fair Value of Financial Assets and Liabilities - Level 3 Measurements (Details) link:calculationLink link:definitionLink link:presentationLink 995491 - Disclosure - Note 8 - Prepaid Expenses and Other Assets - Schedule of Prepaid Expenses and Other Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995492 - Disclosure - Note 9 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995493 - Disclosure - Note 9 - Leases - Lease Information (Details) link:calculationLink link:definitionLink link:presentationLink 995494 - Disclosure - Note 9 - Leases - Schedule of Lease Cost (Details) link:calculationLink link:definitionLink link:presentationLink 995495 - Disclosure - Note 9 - Leases - Schedule of Future Minimum Payments (Details) link:calculationLink link:definitionLink link:presentationLink 995496 - Disclosure - Note 10 - Net Loss per Share - Schedule of Net Loss per Share (Details) link:calculationLink link:definitionLink link:presentationLink 995497 - Disclosure - Note 11 - Stockholders' Equity and Convertible Preferred Stock (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995498 - Disclosure - Note 11 - Stockholders' Equity and Convertible Preferred Stock - Warrant Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995499 - Disclosure - Note 11 - Stockholders' Equity and Convertible Preferred Stock - Restricted Stock Award Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995500 - Disclosure - Note 11 - Stockholders' Equity and Convertible Preferred Stock - Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995501 - Disclosure - Note 12 - Revenue (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995502 - Disclosure - Note 12 - Revenue - Disaggregation of Revenue (Details) link:calculationLink link:definitionLink link:presentationLink 995503 - Disclosure - Note 14 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995504 - Disclosure - Note 14 - Income Taxes - Schedule of Income Tax Expense (Benefit) (Details) link:calculationLink link:definitionLink link:presentationLink 995505 - Disclosure - Note 15 - Regulatory (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995506 - Disclosure - Note 16 - Related Party Transactions (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995507 - Disclosure - Note 17 - Segment Reporting (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995508 - Disclosure - Note 17 - Segment Reporting - Schedule of Segment Information (Details) link:calculationLink link:definitionLink link:presentationLink 995509 - Disclosure - Note 18 - Subsequent Events (Details Textual) link:calculationLink link:definitionLink link:presentationLink