001 - Statement - Balance Sheets (Unaudited) link:presentationLink link:definitionLink link:calculationLink 002 - Statement - Balance Sheets (Unaudited) (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 003 - Statement - Statements of Comprehensive Loss (Unaudited) link:presentationLink link:definitionLink link:calculationLink 004 - Statement - Statements of Cash Flows (Unaudited) link:presentationLink link:definitionLink link:calculationLink 005 - Statement - Statements of Cash Flows (Unaudited) (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 006 - Disclosure - Note 1 - Business link:presentationLink link:definitionLink link:calculationLink 007 - Disclosure - Note 2 - Interim Financial Statements link:presentationLink link:definitionLink link:calculationLink 008 - Disclosure - Note 3 - Use of Estimates link:presentationLink link:definitionLink link:calculationLink 009 - Disclosure - Note 4 - Inventories link:presentationLink link:definitionLink link:calculationLink 010 - Disclosure - Note 5 - Net Loss per Share link:presentationLink link:definitionLink link:calculationLink 011 - Disclosure - Note 6 - Cash, Cash Equivalents and Short-Term Investments link:presentationLink link:definitionLink link:calculationLink 012 - Disclosure - Note 7 - Fair Value of Financial Instruments link:presentationLink link:definitionLink link:calculationLink 013 - Disclosure - Note 8 - Property and Equipment link:presentationLink link:definitionLink link:calculationLink 014 - Disclosure - Note 9 - Commitments and Contingencies link:presentationLink link:definitionLink link:calculationLink 015 - Disclosure - Note 10 - Accrued Liabilities link:presentationLink link:definitionLink link:calculationLink 016 - Disclosure - Note 11 - Stockholders' Equity link:presentationLink link:definitionLink link:calculationLink 017 - Disclosure - Note 12 - Stock-Based Compensation link:presentationLink link:definitionLink link:calculationLink 018 - Disclosure - Note 13 - Employee Benefit Plan link:presentationLink link:definitionLink link:calculationLink 019 - Disclosure - Note 4 - Inventories (Tables) link:presentationLink link:definitionLink link:calculationLink 020 - Disclosure - Note 5 - Net Loss per Share (Tables) link:presentationLink link:definitionLink link:calculationLink 021 - Disclosure - Note 6 - Cash, Cash Equivalents and Short-Term Investments (Tables) link:presentationLink link:definitionLink link:calculationLink 022 - Disclosure - Note 7 - Fair Value of Financial Instruments (Tables) link:presentationLink link:definitionLink link:calculationLink 023 - Disclosure - Note 8 - Property and Equipment (Tables) link:presentationLink link:definitionLink link:calculationLink 024 - Disclosure - Note 10 - Accrued Liabilities (Tables) link:presentationLink link:definitionLink link:calculationLink 025 - Disclosure - Note 12 - Stock-Based Compensation (Tables) link:presentationLink link:definitionLink link:calculationLink 026 - Disclosure - Note 4 - Inventories (Details) - Inventories link:presentationLink link:definitionLink link:calculationLink 027 - Disclosure - Note 5 - Net Loss per Share (Details) - Calculation of Net Loss per Common Share link:presentationLink link:definitionLink link:calculationLink 028 - Disclosure - Note 5 - Net Loss per Share (Details) - Antidilutive Securities link:presentationLink link:definitionLink link:calculationLink 029 - Disclosure - Note 6 - Cash, Cash Equivalents and Short-Term Investments (Details) - Cash, Cash Equivalents and Short-Term Investments link:presentationLink link:definitionLink link:calculationLink 030 - Disclosure - Note 7 - Fair Value of Financial Instruments (Details) - Summary of Financial Assets Measured at Fair Value on a Recurring Basis link:presentationLink link:definitionLink link:calculationLink 031 - Disclosure - Note 8 - Property and Equipment (Details) link:presentationLink link:definitionLink link:calculationLink 032 - Disclosure - Note 8 - Property and Equipment (Details) - Property and Equipment link:presentationLink link:definitionLink link:calculationLink 033 - Disclosure - Note 9 - Commitments and Contingencies (Details) link:presentationLink link:definitionLink link:calculationLink 034 - Disclosure - Note 10 - Accrued Liabilities (Details) - Accrued Liabilities link:presentationLink link:definitionLink link:calculationLink 035 - Disclosure - Note 11 - Stockholders' Equity (Details) link:presentationLink link:definitionLink link:calculationLink 036 - Disclosure - Note 12 - Stock-Based Compensation (Details) link:presentationLink link:definitionLink link:calculationLink 037 - Disclosure - Note 12 - Stock-Based Compensation (Details) - Summary of Option Activity link:presentationLink link:definitionLink link:calculationLink 038 - Disclosure - Note 12 - Stock-Based Compensation (Details) - Summary of Restricted Stock Award Activity link:presentationLink link:definitionLink link:calculationLink 039 - Disclosure - Note 12 - Stock-Based Compensation (Details) - Stock-based Compensation Expense link:presentationLink link:definitionLink link:calculationLink 040 - Disclosure - Note 13 - Employee Benefit Plan (Details) link:presentationLink link:definitionLink link:calculationLink 000 - Disclosure - Document And Entity Information link:presentationLink link:definitionLink link:calculationLink