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 - ORGANIZATION AND BASIS OF PRESENTATION​ link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - CASH, CASH EQUIVALENTS AND 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 - DERIVATIVE LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - EQUITY INCENTIVE PLANS​ link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION​ (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - CASH, CASH EQUIVALENTS AND INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - INVENTORY (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - COLLABORATION AND LICENSING AGREEMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954477 - Disclosure - BORROWING (Tables) link:presentationLink link:calculationLink link:definitionLink 9954478 - Disclosure - DERIVATIVE LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954479 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954480 - Disclosure - EQUITY INCENTIVE PLANS​ (Tables) link:presentationLink link:calculationLink link:definitionLink 9954481 - Disclosure - NET LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9954482 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION​ (Details) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - CASH, CASH EQUIVALENTS AND INVESTMENTS - Securities Classified as Cash, Cash Equivalents and Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - CASH, CASH EQUIVALENTS AND INVESTMENTS - Securities Classified as Cash, Cash Equivalents and Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9954484 - Disclosure - CASH, CASH EQUIVALENTS AND INVESTMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Measured on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - FAIR VALUE MEASUREMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - INVENTORY - Schedule of Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - INVENTORY - Schedule of Inventory (Details) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - INVENTORY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - REVENUE - Schedule of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - REVENUE - Revenue from Customers as a Percentage of Total Product Revenue, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - REVENUE - Chargebacks, Discounts and Reserve Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - COLLABORATION AND LICENSING AGREEMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - COLLABORATION AND LICENSING AGREEMENTS - Deferred Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - DEFERRED ROYALTY OBLIGATION RELATED TO THE SALE OF FUTURE ROYALTIES (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - BORROWING - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - BORROWING - Future Debt Payment Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - BORROWING - Future Debt Payment Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - DERIVATIVE LIABILITIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - DERIVATIVE LIABILITIES - Changes in Fair Value of Derivative Liability (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - LEASES - Additional Details of Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - LEASES - Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - LEASES - Undiscounted Cash Payment Obligations for Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - LEASES - Undiscounted Cash Payment Obligations for Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - Disclosure - STOCKHOLDERS’ EQUITY (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - EQUITY INCENTIVE PLANS​ - Stock-Based Compensation Expense Recognized (Details) link:presentationLink link:calculationLink link:definitionLink 9954504 - Disclosure - EQUITY INCENTIVE PLANS​ - Total Unrecognized Stock-Based Compensation Expense, Net of Estimated Forfeitures (Details) link:presentationLink link:calculationLink link:definitionLink 9954505 - Disclosure - EQUITY INCENTIVE PLANS​ - Stock Options Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9954506 - Disclosure - EQUITY INCENTIVE PLANS​ - Restricted Stock Units Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9954507 - Disclosure - EQUITY INCENTIVE PLANS​ - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954508 - Disclosure - NET LOSS PER SHARE - Computation of Net Loss Per Common Share (Details) link:presentationLink link:calculationLink link:definitionLink 9954509 - Disclosure - NET LOSS PER SHARE - Anti Dilutive Securities Excluded from Computation of Diluted Net Loss Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9954510 - Disclosure - CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink