00100 - Statement - Condensed Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 00200 - Statement - Condensed Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 00300 - Statement - Condensed Consolidated Statements of Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 00500 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 40201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash, Cash equivalents and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 40204 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Available-for-sale of securities (Details) link:presentationLink link:calculationLink link:definitionLink 40302 - Disclosure - CASH EQUIVALENTS AND INVESTMENTS - Available for sale debt securities (Details) link:presentationLink link:calculationLink link:definitionLink 40305 - Disclosure - CASH EQUIVALENTS AND INVESTMENTS - Contractual maturity (Details) link:presentationLink link:calculationLink link:definitionLink 40401 - Disclosure - PROPERTY AND EQUIPMENT - (Details) link:presentationLink link:calculationLink link:definitionLink 40501 - Disclosure - ACCRUED EXPENSES (Details) link:presentationLink link:calculationLink link:definitionLink 41002 - Disclosure - LEASES - Company's right-of-use asset and lease liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 41003 - Disclosure - LEASES - components of lease expenses (Details) link:presentationLink link:calculationLink link:definitionLink 41004 - Disclosure - LEASES - maturities of the Company's operating lease liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 41103 - Disclosure - LEASES - maturities of the Company's operating lease liabilities (Details) Calc 2 link:presentationLink link:calculationLink link:definitionLink 00090 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 00105 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 00400 - Statement - Condensed Consolidated Statements of Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 40101 - Disclosure - GENERAL ORGANIZATION AND BUSINESS (Details) link:presentationLink link:calculationLink link:definitionLink 40202 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Loss per share (Details) link:presentationLink link:calculationLink link:definitionLink 40203 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair value (Details) link:presentationLink link:calculationLink link:definitionLink 40301 - Disclosure - CASH EQUIVALENTS AND INVESTMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 40303 - Disclosure - CASH EQUIVALENTS AND INVESTMENTS - Short-term investments (Details) link:presentationLink link:calculationLink link:definitionLink 40304 - Disclosure - CASH EQUIVALENTS AND INVESTMENTS - Cost and fair value (Details) link:presentationLink link:calculationLink link:definitionLink 40601 - Disclosure - STOCKHOLDERS' EQUITY (Details) link:presentationLink link:calculationLink link:definitionLink 40701 - Disclosure - STOCK BASED COMPENSATION (Details) link:presentationLink link:calculationLink link:definitionLink 40702 - Disclosure - STOCK BASED COMPENSATION - Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 40703 - Disclosure - STOCK BASED COMPENSATION - Restricted stock unit (Details) link:presentationLink link:calculationLink link:definitionLink 40704 - Disclosure - STOCK BASED COMPENSATION- stock based expense (Details) link:presentationLink link:calculationLink link:definitionLink 40705 - Disclosure - STOCK BASED COMPENSATION - Stock-based compensation by instrument (Details) link:presentationLink link:calculationLink link:definitionLink 40801 - Disclosure - LICENSES AND AGREEMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 40901 - Disclosure - LEGAL PROCEEDINGS (Details) link:presentationLink link:calculationLink link:definitionLink 41001 - Disclosure - LEASES - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 41101 - Disclosure - LONG-TERM NOTE (Details) link:presentationLink link:calculationLink link:definitionLink 41201 - Disclosure - RELATED PARTY TRANSACTIONS - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 41301 - Disclosure - INCOME TAXES - (Details) link:presentationLink link:calculationLink link:definitionLink 10101 - Disclosure - GENERAL ORGANIZATION AND BUSINESS link:presentationLink link:calculationLink link:definitionLink 10201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 10301 - Disclosure - CASH EQUIVALENTS AND INVESTMENTS link:presentationLink link:calculationLink link:definitionLink 10401 - Disclosure - PROPERTY AND EQUIPMENT link:presentationLink link:calculationLink link:definitionLink 10501 - Disclosure - ACCRUED EXPENSES link:presentationLink link:calculationLink link:definitionLink 10601 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 10701 - Disclosure - STOCK BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 10801 - Disclosure - LICENSES AND AGREEMENTS link:presentationLink link:calculationLink link:definitionLink 10901 - Disclosure - LEGAL PROCEEDINGS link:presentationLink link:calculationLink link:definitionLink 11001 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 11101 - Disclosure - LONG-TERM NOTE link:presentationLink link:calculationLink link:definitionLink 11201 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 11301 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 20202 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 30203 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 30303 - Disclosure - CASH EQUIVALENTS AND INVESTMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 30403 - Disclosure - PROPERTY AND EQUIPMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 30503 - Disclosure - ACCRUED EXPENSES (Tables) link:presentationLink link:calculationLink link:definitionLink 30703 - Disclosure - STOCK BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 31003 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 40402 - Disclosure - PROPERTY AND EQUIPMENT - Other information (Details) link:presentationLink link:calculationLink link:definitionLink