0000001 - Document - Cover 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 CHANGES IN STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - NATURE OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - INVENTORY link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - COLLABORATION AND LICENSING AGREEMENTS link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - DEFERRED ROYALTY OBLIGATION RELATED TO THE SALE OF FUTURE ROYALTIES link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - BORROWING link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - EQUITY INCENTIVE PLANS​ link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - SEGMENT REPORTING link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - NATURE OF OPERATIONS​ (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - INVENTORY (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - COLLABORATION AND LICENSING AGREEMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - DEFERRED ROYALTY OBLIGATION RELATED TO THE SALE OF FUTURE ROYALTIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - BORROWING (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - EQUITY INCENTIVE PLANS​ (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - SEGMENT REPORTING (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - NET LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - NATURE OF OPERATIONS​ (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Securities Classified as Cash, Cash Equivalents and Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Securities Classified as Cash, Cash Equivalents and Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - CASH, CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - FAIR VALUE MEASUREMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - INVENTORY - Schedule of Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - INVENTORY - Schedule of Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - INVENTORY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - REVENUE - Schedule of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - REVENUE - Revenue from Customers as a Percentage of Total Product Revenue, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - REVENUE - GTN Adjustments (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - COLLABORATION AND LICENSING AGREEMENTS - Recognized Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - COLLABORATION AND LICENSING AGREEMENTS - Deferred Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - COLLABORATION AND LICENSING AGREEMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - DEFERRED ROYALTY OBLIGATION RELATED TO THE SALE OF FUTURE ROYALTIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - DEFERRED ROYALTY OBLIGATION RELATED TO THE SALE OF FUTURE ROYALTIES - Schedule (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - BORROWING - Schedule of Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - BORROWING - Schedule of Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - BORROWING - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - LEASES - Additional Details of Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - LEASES - Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - LEASES - Undiscounted Cash Payment Obligations for Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - LEASES - Undiscounted Cash Payment Obligations for Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - STOCKHOLDERS’ EQUITY (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - EQUITY INCENTIVE PLANS​ - Stock-Based Compensation Expense Recognized (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - EQUITY INCENTIVE PLANS​ - Total Unrecognized Stock-Based Compensation Expense, Net of Estimated Forfeitures (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - EQUITY INCENTIVE PLANS​ - Stock Options Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - EQUITY INCENTIVE PLANS​ - Restricted Stock Units Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - EQUITY INCENTIVE PLANS​ - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - SEGMENT REPORTING - Schedule of Operating Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - NET LOSS PER SHARE - Computation of Net Loss Per Common Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - NET LOSS PER SHARE - Anti Dilutive Securities Excluded from Computation of Diluted Net Loss Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink