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 and Comprehensive Loss (Unaudited) link:calculationLink link:definitionLink link:presentationLink 004 - Statement - 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 - The Company and Description of Business 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 - Fair Value of Financial Instruments link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Significant Agreements and Contracts link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Prepaid Expenses link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Accrued Expenses and Other Current Liabilities link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Commitments and Contingencies link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Stockholders' Equity and Common Stock Warrants link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Stock-based Compensation Stock link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Segments link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995445 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995446 - Disclosure - Note 3 - Summary of Significant Accounting Policies (Tables) link:calculationLink link:definitionLink link:presentationLink 995447 - Disclosure - Note 4 - Fair Value of Financial Instruments (Tables) link:calculationLink link:definitionLink link:presentationLink 995448 - Disclosure - Note 6 - Prepaid Expenses (Tables) link:calculationLink link:definitionLink link:presentationLink 995449 - Disclosure - Note 7 - Accrued Expenses and Other Current Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 995450 - Disclosure - Note 9 - Stockholders' Equity and Common Stock Warrants (Tables) link:calculationLink link:definitionLink link:presentationLink 995451 - Disclosure - Note 10 - Stock-based Compensation Stock (Tables) link:calculationLink link:definitionLink link:presentationLink 995452 - Disclosure - Note 11 - Segments (Tables) link:calculationLink link:definitionLink link:presentationLink 995453 - Disclosure - Note 1 - The Company and Description of Business (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995454 - Disclosure - Note 2 - Liquidity and Capital Resources (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995455 - Disclosure - Note 3 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995456 - Disclosure - Note 3 - Summary of Significant Accounting Policies - Outstanding Dilutive Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995457 - Disclosure - Note 4 - Fair Value of Financial Instruments - Assets Measured at Fair Value on Recurring Basis (Details) link:calculationLink link:definitionLink link:presentationLink 995458 - Disclosure - Note 4 - Fair Value of Financial Instruments - Marketable Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995459 - Disclosure - Note 5 - Significant Agreements and Contracts (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995460 - Disclosure - Note 6 - Prepaid Expenses - Prepaid Expenses and Other Current Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995461 - Disclosure - Note 7 - Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses (Details) link:calculationLink link:definitionLink link:presentationLink 995462 - Disclosure - Note 8 - Commitments and Contingencies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995463 - Disclosure - Note 9 - Stockholders' Equity and Common Stock Warrants (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995464 - Disclosure - Note 9 - Stockholders' Equity and Common Stock Warrants - Warrants Outstanding to Acquire Shares of Its Common Stock (Details) link:calculationLink link:definitionLink link:presentationLink 995465 - Disclosure - Note 10 - Stock-based Compensation Stock (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995466 - Disclosure - Note 11 - Stock-based Compensation Stock - Stock-based Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995467 - Disclosure - Note 10 - Stock-based Compensation Stock - Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995468 - Disclosure - Note 10 - Stock-based Compensation Stock - Stock Assumptions (Details) link:calculationLink link:definitionLink link:presentationLink 995469 - Disclosure - Note 11 - Segments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Note 11 - Segments - Schedule of Segment Information (Details) link:calculationLink link:definitionLink link:presentationLink