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 - Nature of 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 - Balance Sheet Components link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 4 - Commitments 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 Expense link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Net Loss Per Share link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 995445 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995446 - Disclosure - Note 3 - Balance Sheet Components (Tables) link:calculationLink link:definitionLink link:presentationLink 995447 - Disclosure - Note 4 - Commitments (Tables) link:calculationLink link:definitionLink link:presentationLink 995448 - Disclosure - Note 5 - Stockholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995449 - Disclosure - Note 6 - Stock-based Compensation Expense (Tables) link:calculationLink link:definitionLink link:presentationLink 995450 - Disclosure - Note 3 - Balance Sheet Components - Prepaid Expenses (Details) link:calculationLink link:definitionLink link:presentationLink 995451 - Disclosure - Note 3 - Balance Sheet Components - Schedule of Property and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 995452 - Disclosure - Note 3 - Balance Sheet Components - Schedule of Other Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995453 - Disclosure - Note 3 - Balance Sheet Components - Schedule of Accrued Expenses (Details) link:calculationLink link:definitionLink link:presentationLink 995454 - Disclosure - Note 4 - Commitments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995455 - Disclosure - Note 4 - Commitments - Schedule of Lease Maturity (Details) link:calculationLink link:definitionLink link:presentationLink 995456 - Disclosure - Note 5 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995457 - Disclosure - Note 5 - Stockholders' Equity- Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995458 - Disclosure - Note 5 - Stockholders' Equity - Schedule of Valuation Assumption (Details) link:calculationLink link:definitionLink link:presentationLink 995459 - Disclosure - Note 5 - Stockholders' Equity - Schedule of Stock Warrants (Details) link:calculationLink link:definitionLink link:presentationLink 995460 - Disclosure - Note 6 - Stock-based Compensation Expense (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995461 - Disclosure - Note 6 - Stock-Based Compensation Expense - Schedule of Stock-Based Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995462 - Disclosure - Note 6 - Stock-Based Compensation Expense - Schedule of Stock-Based Compensation Expense 2 (Details) link:calculationLink link:definitionLink link:presentationLink 995463 - Disclosure - Note 7 - Net Loss Per Share (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995464 - Disclosure - Note 8 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink