000 - Document - Document And Entity Information link:presentationLink link:definitionLink link:calculationLink 001 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) link:presentationLink link:definitionLink link:calculationLink 002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 003 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) link:presentationLink link:definitionLink link:calculationLink 004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) link:presentationLink link:definitionLink link:calculationLink 005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) link:presentationLink link:definitionLink link:calculationLink 006 - Disclosure - NATURE OF OPERATIONS link:presentationLink link:definitionLink link:calculationLink 007 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:definitionLink link:calculationLink 008 - Disclosure - REVENUE link:presentationLink link:definitionLink link:calculationLink 009 - Disclosure - CASH AND CASH EQUIVALENTS link:presentationLink link:definitionLink link:calculationLink 010 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS link:presentationLink link:definitionLink link:calculationLink 011 - Disclosure - INTANGIBLE ASSETS, NET link:presentationLink link:definitionLink link:calculationLink 012 - Disclosure - PROPERTY AND EQUIPMENT link:presentationLink link:definitionLink link:calculationLink 013 - Disclosure - ACCRUED EXPENSES link:presentationLink link:definitionLink link:calculationLink 014 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:definitionLink link:calculationLink 015 - Disclosure - NET INCOME (LOSS) PER SHARE link:presentationLink link:definitionLink link:calculationLink 016 - Disclosure - SHARE-BASED COMPENSATION link:presentationLink link:definitionLink link:calculationLink 017 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:definitionLink link:calculationLink 018 - Disclosure - INCOME TAXES link:presentationLink link:definitionLink link:calculationLink 019 - Disclosure - COMMITMENT AND CONTINGENCIES link:presentationLink link:definitionLink link:calculationLink 020 - Disclosure - LEASES link:presentationLink link:definitionLink link:calculationLink 021 - Disclosure - SEGMENT REPORTING link:presentationLink link:definitionLink link:calculationLink 022 - Disclosure - DISCONTINUED OPERATIONS link:presentationLink link:definitionLink link:calculationLink 023 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:definitionLink link:calculationLink 995469 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:definitionLink link:calculationLink 995470 - Disclosure - REVENUE (Tables) link:presentationLink link:definitionLink link:calculationLink 995471 - Disclosure - CASH AND CASH EQUIVALENTS (Tables) link:presentationLink link:definitionLink link:calculationLink 995472 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables) link:presentationLink link:definitionLink link:calculationLink 995473 - Disclosure - INTANGIBLE ASSETS, NET (Tables) link:presentationLink link:definitionLink link:calculationLink 995474 - Disclosure - PROPERTY AND EQUIPMENT (Tables) link:presentationLink link:definitionLink link:calculationLink 995475 - Disclosure - ACCRUED EXPENSES (Tables) link:presentationLink link:definitionLink link:calculationLink 995476 - Disclosure - NET INCOME (LOSS) PER SHARE (Tables) link:presentationLink link:definitionLink link:calculationLink 995477 - Disclosure - SHARE-BASED COMPENSATION (Tables) link:presentationLink link:definitionLink link:calculationLink 995478 - Disclosure - RELATED PARTY TRANSACTIONS (Tables) link:presentationLink link:definitionLink link:calculationLink 995479 - Disclosure - LEASES (Tables) link:presentationLink link:definitionLink link:calculationLink 995480 - Disclosure - SEGMENT REPORTING (Tables) link:presentationLink link:definitionLink link:calculationLink 9954801 - Disclosure - DISCONTINUED OPERATIONS (Tables) link:presentationLink link:definitionLink link:calculationLink 995481 - Disclosure - NATURE OF OPERATIONS (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995482 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995483 - Disclosure - REVENUE - Components of Disaggregated Revenue (Details) link:presentationLink link:definitionLink link:calculationLink 995484 - Disclosure - REVENUE - Revenue By Geographical Location (Details) link:presentationLink link:definitionLink link:calculationLink 995485 - Disclosure - CASH AND CASH EQUIVALENTS - Reconciliation of Cash and Cash Equivalents (Details) link:presentationLink link:definitionLink link:calculationLink 995486 - Disclosure - CASH AND CASH EQUIVALENTS - Schedule of Cash and Cash Equivalents, and Restricted Cash By Country (Details) link:presentationLink link:definitionLink link:calculationLink 995487 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS - Schedule of Prepaid Expenses and Other Current Assets (Details) link:presentationLink link:definitionLink link:calculationLink 995488 - Disclosure - INTANGIBLE ASSETS, NET (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995489 - Disclosure - INTANGIBLE ASSETS, NET - Summary of Intangible Assets (Details) link:presentationLink link:definitionLink link:calculationLink 995490 - Disclosure - PROPERTY AND EQUIPMENT (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995491 - Disclosure - PROPERTY AND EQUIPMENT - Schedule of Property Plant and Equipment (Details) link:presentationLink link:definitionLink link:calculationLink 995492 - Disclosure - ACCRUED EXPENSES (Details) link:presentationLink link:definitionLink link:calculationLink 995493 - Disclosure - STOCKHOLDERS' EQUITY (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995494 - Disclosure - NET INCOME (LOSS) PER SHARE - Schedule of Earnings Per Share (Details) link:presentationLink link:definitionLink link:calculationLink 995495 - Disclosure - NET INCOME (LOSS) PER SHARE - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) link:presentationLink link:definitionLink link:calculationLink 995496 - Disclosure - SHARE-BASED COMPENSATION (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995497 - Disclosure - SHARE-BASED COMPENSATION - Schedule of Stock Option Activity (Details) link:presentationLink link:definitionLink link:calculationLink 995498 - Disclosure - SHARE-BASED COMPENSATION - Options Award Assumptions (Details) link:presentationLink link:definitionLink link:calculationLink 995499 - Disclosure - SHARE-BASED COMPENSATION - Schedule of Stock Share-based Compensation (Details) link:presentationLink link:definitionLink link:calculationLink 995500 - Disclosure - SHARE-BASED COMPENSATION - Schedule of Restricted Stock Unit Activity (Details) link:presentationLink link:definitionLink link:calculationLink 995501 - Disclosure - SHARE-BASED COMPENSATION - Schedule of Warrant Activity (Details) link:presentationLink link:definitionLink link:calculationLink 995502 - Disclosure - RELATED PARTY TRANSACTIONS (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995503 - Disclosure - RELATED PARTY TRANSACTIONS - Components of Related Party Balances (Details) link:presentationLink link:definitionLink link:calculationLink 995504 - Disclosure - INCOME TAXES (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995505 - Disclosure - LEASES (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995506 - Disclosure - LEASES - Right-of-use Assets (Details) link:presentationLink link:definitionLink link:calculationLink 995507 - Disclosure - LEASES - Maturity Of Leases (Details) link:presentationLink link:definitionLink link:calculationLink 9955071 - Disclosure - LEASES - Maturity Of Leases (Details) (Calc 2) link:presentationLink link:definitionLink link:calculationLink 995508 - Disclosure - SEGMENT REPORTING (Details Textual) link:presentationLink link:definitionLink link:calculationLink 995509 - Disclosure - SEGMENT REPORTING - Financial Results (Details) link:presentationLink link:definitionLink link:calculationLink 995510 - Disclosure - DISCONTINUED OPERATIONS (Details - Narrative) link:presentationLink link:definitionLink link:calculationLink 995511 - Disclosure - DISCONTINUED OPERATIONS - Schedule of net income (loss) from discontinued operations (Details) link:presentationLink link:definitionLink link:calculationLink 995512 - Disclosure - DISCONTINUED OPERATIONS - Schedule of cash flows from operations and investing of discontinued operations (Details) link:presentationLink link:definitionLink link:calculationLink 995627 - Disclosure - SUBSEQUENT EVENTS (Details - Narrative) link:presentationLink link:definitionLink link:calculationLink