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 - 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 - Description of the Business 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 - Fair Value Measurement link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Accrued Liabilities link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 5 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Stock-Based Compensation link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Net Loss Per Share link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Segment Reporting link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995461 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995462 - Disclosure - Note 3 - Fair Value Measurement (Tables) link:calculationLink link:definitionLink link:presentationLink 995463 - Disclosure - Note 4 - Accrued Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 995464 - Disclosure - Note 5 - Stockholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995465 - Disclosure - Note 6 - Stock-Based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 995466 - Disclosure - Note 7 - Net Loss Per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995467 - Disclosure - Note 8 - Segment Reporting (Tables) link:calculationLink link:definitionLink link:presentationLink 995468 - Disclosure - Note 1 - Description of the Business (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995469 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Note 3 - Fair Value Measurement (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Note 3 - Fair Value Measurement - Financial Assets Measured on a Recurring Basis (Details) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 4 - Accrued Liabilities (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995473 - Disclosure - Note 4 - Accrued Liabilities - Accrued Expenses (Details) link:calculationLink link:definitionLink link:presentationLink 995474 - Disclosure - Note 5 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995475 - Disclosure - Note 5 - Stockholders' Equity - Warrant Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995476 - Disclosure - Note 6 - Stock-Based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995477 - Disclosure - Note 6 - Stock-Based Compensation - Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995478 - Disclosure - Note 6 - Stock-Based Compensation - Stock-Based Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995479 - Disclosure - Note 6 - Stock-Based Compensation - Option Assumptions (Details) link:calculationLink link:definitionLink link:presentationLink 995480 - Disclosure - Note 7 - Net Loss Per Share - Antidilutive Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995481 - Disclosure - Note 8 - Segment Reporting (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995482 - Disclosure - Note 8 - Segment Reporting - Reconciliation of Net Loss (Details) link:calculationLink link:definitionLink link:presentationLink 995483 - Disclosure - Note 9 - Subsequent Events (Details Textual) link:calculationLink link:definitionLink link:presentationLink