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Statement - CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) link:presentationLink link:calculationLink link:definitionLink 40101 - Disclosure - Organization and Description of Business (Details) link:presentationLink link:calculationLink link:definitionLink 40201 - Disclosure - Summary of Significant Accounting Policies - Reclassifications (Details) link:presentationLink link:calculationLink link:definitionLink 40203 - Disclosure - Summary of Significant Accounting Policies - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 40205 - Disclosure - Summary of Significant Accounting Policies - Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 40401 - Disclosure - Stock-Based Compensation - 2020 Plan (Details) link:presentationLink link:calculationLink link:definitionLink 40402 - Disclosure - Stock-Based Compensation - Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 40403 - 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Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 30403 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 30503 - Disclosure - Inventory (Tables) link:presentationLink link:calculationLink link:definitionLink 30603 - Disclosure - Long-Term Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 30903 - Disclosure - Net Loss Per Share Attributable to Common Stockholders (Tables) link:presentationLink link:calculationLink link:definitionLink 31103 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 40204 - Disclosure - Summary of Significant Accounting Policies - Long-Lived Assets (Details) link:presentationLink link:calculationLink link:definitionLink 40206 - Disclosure - Summary of Significant Accounting Policies - Concentration of Credit risk (Details) link:presentationLink link:calculationLink link:definitionLink 40405 - Disclosure - Stock-Based Compensation - Assumption (Details) link:presentationLink link:calculationLink link:definitionLink 40901 - Disclosure - Net Loss Per Share Attributable to Common Stockholders (Details) link:presentationLink link:calculationLink link:definitionLink