0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 0000003 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 0000004 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0000005 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 0000006 - Statement - CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) link:presentationLink link:calculationLink link:definitionLink 0000007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 0000008 - Disclosure - DESCRIPTION OF BUSINESS link:presentationLink link:calculationLink link:definitionLink 0000009 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - REVERSE RECAPITALIZATION link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - BALANCE SHEETS COMPONENTS link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - CONTINGENT FORWARD CONTRACTS link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - CONVERTIBLE PREFERRED STOCK WARRANT LIABILITY link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - COMMON STOCK WARRANT LIABILITY link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - CONVERTIBLE PREFERRED STOCK link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - EARNBACK SHARES AND WARRANTS link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - STOCK-BASED AWARDS link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 0000022 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 0000023 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 0000024 - Disclosure - NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 0000025 - Disclosure - EMPLOYEE BENEFIT PLAN link:presentationLink link:calculationLink link:definitionLink 0000026 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 0000027 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 0000028 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 0000029 - Disclosure - REVERSE RECAPITALIZATION (Tables) link:presentationLink link:calculationLink link:definitionLink 0000030 - Disclosure - BALANCE SHEETS COMPONENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 0000031 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 0000032 - Disclosure - DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 0000033 - Disclosure - CONTINGENT FORWARD CONTRACTS (Tables) link:presentationLink link:calculationLink link:definitionLink 0000034 - Disclosure - COMMON STOCK WARRANT LIABILITY (Tables) link:presentationLink link:calculationLink link:definitionLink 0000035 - Disclosure - CONVERTIBLE PREFERRED STOCK (Tables) link:presentationLink link:calculationLink link:definitionLink 0000036 - Disclosure - STOCKHOLDERS’ EQUITY (Tables) link:presentationLink link:calculationLink link:definitionLink 0000037 - Disclosure - STOCK-BASED AWARDS (Tables) link:presentationLink link:calculationLink link:definitionLink 0000038 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 0000039 - Disclosure - COMMITMENTS AND CONTINGENCIES (Tables) link:presentationLink link:calculationLink link:definitionLink 0000040 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 0000041 - Disclosure - NET LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 0000042 - Disclosure - DESCRIPTION OF BUSINESS (Details) link:presentationLink link:calculationLink link:definitionLink 0000043 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Cash and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 0000044 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000045 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 0000046 - Disclosure - REVERSE RECAPITALIZATION- Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000047 - Disclosure - REVERSE RECAPITALIZATION - Shares of Common Stock Issued (Details) link:presentationLink link:calculationLink link:definitionLink 0000048 - Disclosure - BALANCE SHEETS COMPONENTS - Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 0000049 - Disclosure - BALANCE SHEETS COMPONENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000050 - Disclosure - BALANCE SHEETS COMPONENTS - Property, Plant, and Equipment, net (Details) link:presentationLink link:calculationLink link:definitionLink 0000051 - Disclosure - BALANCE SHEETS COMPONENTS - Construction in Progress (Details) link:presentationLink link:calculationLink link:definitionLink 0000052 - Disclosure - BALANCE SHEETS COMPONENTS - Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000053 - Disclosure - BALANCE SHEETS COMPONENTS - Other Noncurrent Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000054 - Disclosure - BALANCE SHEETS COMPONENTS - Accrued Warranty Activities (Details) link:presentationLink link:calculationLink link:definitionLink 0000055 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Assets and Liabilities at Fair Value, Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 0000055 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Assets and Liabilities at Fair Value, Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 0000056 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000057 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Available-for-sale Debt Securities by Contractual Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 0000058 - Disclosure - FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Reconciliation of Level 3 Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000059 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000060 - Disclosure - DEBT - Schedule of Carrying Values and Estimated Fair Values of Convertible Notes (Details) link:presentationLink link:calculationLink link:definitionLink 0000061 - Disclosure - DEBT - Components of Interest Expense (Details) link:presentationLink link:calculationLink link:definitionLink 0000062 - Disclosure - CONTINGENT FORWARD CONTRACTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000063 - Disclosure - CONTINGENT FORWARD CONTRACTS - Valuation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 0000064 - Disclosure - CONVERTIBLE PREFERRED STOCK WARRANT LIABILITY (Details) link:presentationLink link:calculationLink link:definitionLink 0000065 - Disclosure - COMMON STOCK WARRANT LIABILITY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000066 - Disclosure - COMMON STOCK WARRANT LIABILITY - Fair Value of Private Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 0000067 - Disclosure - COMMON STOCK WARRANT LIABILITY - Level 3 Fair Value Inputs (Details) link:presentationLink link:calculationLink link:definitionLink 0000068 - Disclosure - CONVERTIBLE PREFERRED STOCK - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000069 - Disclosure - CONVERTIBLE PREFERRED STOCK - Schedule of Proceeds from Series D Preferred Stock (Details) link:presentationLink link:calculationLink link:definitionLink 0000070 - Disclosure - STOCKHOLDERS’ EQUITY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000071 - Disclosure - STOCKHOLDERS’ EQUITY - Public Common Stock Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 0000072 - Disclosure - STOCKHOLDERS’ EQUITY - Common Stock Reserved for Issuance (Details) link:presentationLink link:calculationLink link:definitionLink 0000073 - Disclosure - EARNBACK SHARES AND WARRANTS (Details) link:presentationLink link:calculationLink link:definitionLink 0000074 - Disclosure - STOCK-BASED AWARDS - Schedule of Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 0000075 - Disclosure - STOCK-BASED AWARDS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000076 - Disclosure - STOCK-BASED AWARDS - Restricted Stock Award Activity (Details) link:presentationLink link:calculationLink link:definitionLink 0000077 - Disclosure - STOCK-BASED AWARDS - Valuation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 0000078 - Disclosure - STOCK-BASED AWARDS - Employee Stock Purchase Plan (Details) link:presentationLink link:calculationLink link:definitionLink 0000079 - Disclosure - STOCK-BASED AWARDS - Share-based Payment Arrangement, Expense (Details) link:presentationLink link:calculationLink link:definitionLink 0000080 - Disclosure - LEASES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000081 - Disclosure - LEASES - Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000082 - Disclosure - LEASES - Lease Expense (Details) link:presentationLink link:calculationLink link:definitionLink 0000083 - Disclosure - LEASES - Remaining Terms and Discount Rates (Details) link:presentationLink link:calculationLink link:definitionLink 0000084 - Disclosure - LEASES - Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000085 - Disclosure - LEASES - Lease Liability Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 0000085 - Disclosure - LEASES - Lease Liability Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 0000086 - Disclosure - COMMITMENTS AND CONTINGENCIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000087 - Disclosure - COMMITMENTS AND CONTINGENCIES - Schedule of Estimated Purchase Commitment (Details) link:presentationLink link:calculationLink link:definitionLink 0000088 - Disclosure - INCOME TAXES - Schedule of Components of Loss Income before Income Tax (Details) link:presentationLink link:calculationLink link:definitionLink 0000089 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000090 - Disclosure - INCOME TAXES - Schedule of Components of Income Tax Expense (Benefit) (Details) link:presentationLink link:calculationLink link:definitionLink 0000091 - Disclosure - INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 0000092 - Disclosure - INCOME TAXES - Schedule of Components of Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000093 - Disclosure - INCOME TAXES - Schedule of Unrecognized Tax Benefits Roll Forward (Details) link:presentationLink link:calculationLink link:definitionLink 0000094 - Disclosure - NET LOSS PER SHARE - Basic and Diluted Net Loss per Share (Details) link:presentationLink link:calculationLink link:definitionLink 0000095 - Disclosure - NET LOSS PER SHARE - Antidilutive Securities Excluded from Earnings per Share (Details) link:presentationLink link:calculationLink link:definitionLink 0000096 - Disclosure - NET LOSS PER SHARE - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000097 - Disclosure - EMPLOYEE BENEFIT PLAN (Details) link:presentationLink link:calculationLink link:definitionLink 0000098 - Disclosure - RELATED PARTY TRANSACTIONS (Details) link:presentationLink link:calculationLink link:definitionLink