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 Shareholders' 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 - Business link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 2 - Risks and Uncertainties 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 - Prepaid Expenses and Other Assets link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 6 - Amounts Receivable link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 7 - Property and Equipment link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 8 - Accrued Liabilities link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 9 - Operating Lease link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 10 - Shareholders' Equity link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 11 - Net Loss Per Share link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 12 - Share-based Compensation link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 13 - Segment Information link:calculationLink link:definitionLink link:presentationLink 995445 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995446 - Disclosure - Note 4 - Marketable Securities (Tables) link:calculationLink link:definitionLink link:presentationLink 995447 - Disclosure - Note 7 - Property and Equipment (Tables) link:calculationLink link:definitionLink link:presentationLink 995448 - Disclosure - Note 8 - Accrued Liabilities (Tables) link:calculationLink link:definitionLink link:presentationLink 995449 - Disclosure - Note 9 - Operating Lease (Tables) link:calculationLink link:definitionLink link:presentationLink 995450 - Disclosure - Note 10 - Shareholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995451 - 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Disclosure - Note 11 - Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Computation of Net Loss Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 995467 - Disclosure - Note 12 - Share-based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995468 - Disclosure - Note 12 - Share-based Compensation - Share-based Compensation Expense (Details) link:calculationLink link:definitionLink link:presentationLink 995469 - Disclosure - Note 12 - Share-based Compensation - Stock Option Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995470 - Disclosure - Note 12 - Share-based Compensation - Stock Options Outstanding (Details) link:calculationLink link:definitionLink link:presentationLink 995471 - Disclosure - Note 13 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995472 - Disclosure - Note 13 - Segment Information - Segment Information (Details) link:calculationLink link:definitionLink link:presentationLink