0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - ORGANIZATION AND DESCRIPTION OF BUSINESS link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - PROPERTY AND EQUIPMENT AND INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - ACCRUED AND OTHER CURRENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - DEBT link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - STOCK-BASED COMPENSTION PLANS link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - OTHER INCOME - NET link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - SEGMENTS link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - 401(k) link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - PROPERTY AND EQUIPMENT AND INTANGIBLE ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - ACCRUED AND OTHER CURRENT LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - DEBT (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - STOCK-BASED COMPENSTION PLANS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - OTHER INCOME - NET (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - NET LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - SEGMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - ORGANIZATION AND DESCRIPTION OF BUSINESS (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Liabilities Measured at Fair Value on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property, Plant and Equipment, Estimated Useful Lives (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Disaggregated Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - PROPERTY AND EQUIPMENT AND INTANGIBLE ASSETS - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - PROPERTY AND EQUIPMENT AND INTANGIBLE ASSETS - Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - PROPERTY AND EQUIPMENT AND INTANGIBLE ASSETS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - ACCRUED AND OTHER CURRENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - DEBT - Long-term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - DEBT - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - DEBT - 2025 Convertible Notes Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - DEBT - Western Alliance Bank - Revolving Line of Credit Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - RELATED PARTY TRANSACTIONS (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - STOCKHOLDERS’ EQUITY (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - STOCK-BASED COMPENSTION PLANS - Equity Incentive Plans Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - STOCK-BASED COMPENSTION PLANS - Employee Stock Purchase Plan Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - STOCK-BASED COMPENSTION PLANS - Fair Value Measurements and Valuation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - STOCK-BASED COMPENSTION PLANS - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - STOCK-BASED COMPENSTION PLANS - Stock Option Activity Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - STOCK-BASED COMPENSTION PLANS - Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - STOCK-BASED COMPENSTION PLANS - Weighted Average Grant-Date Fair Value of RSUs (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - STOCK-BASED COMPENSTION PLANS - Restricted Stock Unit Activity Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - STOCK-BASED COMPENSTION PLANS - Summary of Stock-based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - LEASES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - LEASES - Schedule of Operating Lease Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - LEASES - Lease Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - LEASES - Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - LEASES - Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - LEASES - Operating and Finance Lease Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - INCOME TAXES - Reconciliation of Income Tax Expense - Current Year (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - INCOME TAXES - Reconciliation of Income Tax Expense - Prior Years (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - INCOME TAXES - Deferred Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - OTHER INCOME - NET (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - NET LOSS PER SHARE - Calculation of Basic and Diluted Loss per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - NET LOSS PER SHARE - Schedule of Antidilutive Securities Excluded from Computation of Net Loss per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - SEGMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - SEGMENTS - Schedule of Gross Profit by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - SEGMENTS - Schedule of Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - 401(k) (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink