0000001 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952155 - Disclosure - BASIS OF PRESENTATION link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - BALANCE SHEET COMPONENTS link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - COMMON STOCK WARRANTS link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - SEGMENT INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - RELATED PARTIES link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - BASIS OF PRESENTATION (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - BALANCE SHEET COMPONENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - STOCKHOLDERS' EQUITY (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - COMMON STOCK WARRANTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - SEGMENT INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - BASIS OF PRESENTATION (Details) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - BALANCE SHEET COMPONENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - BALANCE SHEET COMPONENTS - Schedule of accounts receivable, net (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - BALANCE SHEET COMPONENTS - Schedule of allowance for uncollectible accounts (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - BALANCE SHEET COMPONENTS - Schedule of inventory, net (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - BALANCE SHEET COMPONENTS - Schedule of prepaid expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - BALANCE SHEET COMPONENTS - Schedule of property and equipment, net (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - BALANCE SHEET COMPONENTS - Schedule of accrued expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - BALANCE SHEET COMPONENTS - Schedule of notes payable maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - BALANCE SHEET COMPONENTS - Schedule of notes payable maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - LEASES - Schedule of lease cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - LEASES - Schedule of maturities of operating leases liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - LEASES - Schedule of maturities of operating leases liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - STOCK-BASED COMPENSATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - STOCK-BASED COMPENSATION - Schedule of stock option activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - STOCK-BASED COMPENSATION - Schedule of fair value option assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - STOCK-BASED COMPENSATION - Schedule of stock-based compensation expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - STOCK-BASED COMPENSATION - Schedule of stock-based compensation expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - STOCKHOLDERS' EQUITY - Activity in stockholders' equity (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - STOCKHOLDERS' EQUITY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - COMMON STOCK WARRANTS - Schedule of common stock warrant activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - COMMON STOCK WARRANTS - Schedule of common stock warrant activity for the period (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - LOSS PER SHARE -Schedule of outstanding potentially dilutive securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - SEGMENT INFORMATION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - SEGMENT INFORMATION - Revenue Concentration Risk Percentage (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - SEGMENT INFORMATION - Accounts Receivable Concentration Risk Percentage (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - RELATED PARTIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - SUBSEQUENT EVENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink