0000001 - Document - COVER PAGE link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED BALANCE SHEETS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED BALANCE SHEETS (UNAUDITED) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT) (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - DESCRIPTION OF BUSINESS AND ORGANIZATIONAL STRUCTURE link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - GOING CONCERN link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - BALANCE SHEET COMPONENTS link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - REVENUE AND DEFERRED REVENUE link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - PREFERRED STOCK link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - COMMON STOCK link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - SEGMENTS link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - RELATED PARTIES link:presentationLink link:calculationLink link:definitionLink 9952171 - 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 - BALANCE SHEET COMPONENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - REVENUE AND DEFERRED REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - PREFERRED STOCK (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - COMMON STOCK (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - NET LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - DESCRIPTION OF BUSINESS AND ORGANIZATIONAL STRUCTURE (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - GOING CONCERN (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Long-Lived Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - BALANCE SHEET COMPONENTS - Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - BALANCE SHEET COMPONENTS - Prepaid Expenses and Other Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - BALANCE SHEET COMPONENTS - Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - BALANCE SHEET COMPONENTS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - BALANCE SHEET COMPONENTS - Accrued Expenses and Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - REVENUE AND DEFERRED REVENUE - Revenue Disaggregation (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - REVENUE AND DEFERRED REVENUE - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - LEASES - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - LEASES - Total Lease Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - LEASES - Lease-Related Amounts Reflected in the Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - LEASES - Supplemental Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - LEASES - Future Minimum Lease Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - PREFERRED STOCK - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - PREFERRED STOCK - Preferred Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - COMMON STOCK - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - COMMON STOCK - Black-Scholes Option-Pricing Model (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - COMMON STOCK - Common Stock Reserved for Future Issuance (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - STOCK-BASED COMPENSATION - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - STOCK-BASED COMPENSATION - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - STOCK-BASED COMPENSATION - Black-Scholes Option Pricing Model Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - STOCK-BASED COMPENSATION - Restricted Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - STOCK-BASED COMPENSATION - Stock-Based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - STOCK-BASED COMPENSATION - Stock-Based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - SEGMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - NET LOSS PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - NET LOSS PER SHARE - Antidilutive Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - RELATED PARTIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink