0001001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 1002003 - Statement - Consolidated Balance Sheets (Parentheticals) link:presentationLink link:calculationLink link:definitionLink 1003004 - Statement - Consolidated Statements of Income link:presentationLink link:calculationLink link:definitionLink 1004005 - Statement - Consolidated Statements of Convertible Preferred Stock and Stockholders’ Deficit link:presentationLink link:calculationLink link:definitionLink 1005006 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION - Narratives (Details) link:presentationLink link:calculationLink link:definitionLink 2103102 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 2204201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narratives (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Software Development Costs (Details) link:presentationLink link:calculationLink link:definitionLink 2408404 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Total revenue by geographic area (Details) link:presentationLink link:calculationLink link:definitionLink 2109103 - Disclosure - CAPITALIZED SOFTWARE link:presentationLink link:calculationLink link:definitionLink 2310302 - Disclosure - CAPITALIZED SOFTWARE (Tables) link:presentationLink link:calculationLink link:definitionLink 2411405 - Disclosure - CAPITALIZED SOFTWARE (Details) link:presentationLink link:calculationLink link:definitionLink 2412406 - Disclosure - CAPITALIZED SOFTWARE - Amortization (Details) link:presentationLink link:calculationLink link:definitionLink 2113104 - Disclosure - PROPERTY AND EQUIPMENT link:presentationLink link:calculationLink link:definitionLink 2314303 - Disclosure - PROPERTY AND EQUIPMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 2415407 - Disclosure - PROPERTY AND EQUIPMENT - Schedule of Property And Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 2416408 - Disclosure - PROPERTY AND EQUIPMENT - Depreciation & Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2117105 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 2318304 - Disclosure - 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Disclosure - SIGNIFICANT BALANCE SHEET COMPONENTS - Other Current Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2427415 - Disclosure - SIGNIFICANT BALANCE SHEET COMPONENTS - Accrued Expenses and Other Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2128107 - Disclosure - FINANCING ARRANGEMENTS link:presentationLink link:calculationLink link:definitionLink 2329306 - Disclosure - FINANCING ARRANGEMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 2430416 - Disclosure - FINANCING ARRANGEMENTS - Amortizing term mortgage (Details) link:presentationLink link:calculationLink link:definitionLink 2431417 - Disclosure - FINANCING ARRANGEMENTS - 2021 amended term loan (Details) link:presentationLink link:calculationLink link:definitionLink 2432418 - Disclosure - FINANCING ARRANGEMENTS - Monthly revolving line of credit (Details) link:presentationLink link:calculationLink link:definitionLink 2433419 - Disclosure - FINANCING ARRANGEMENTS - Non-amortizing term loan (Details) link:presentationLink link:calculationLink link:definitionLink 2434420 - Disclosure - FINANCING ARRANGEMENTS - Amortizing term loan (Details) link:presentationLink link:calculationLink link:definitionLink 2435421 - Disclosure - FINANCING ARRANGEMENTS - Future aggregate annual principal payments on all long-term debt (Details) link:presentationLink link:calculationLink link:definitionLink 2435421 - Disclosure - FINANCING ARRANGEMENTS - Future aggregate annual principal payments on all long-term debt (Details) link:presentationLink link:calculationLink link:definitionLink 2136108 - Disclosure - CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ DEFICIT link:presentationLink link:calculationLink link:definitionLink 2337307 - Disclosure - CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ DEFICIT (Tables) link:presentationLink link:calculationLink link:definitionLink 2438422 - Disclosure - CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ DEFICIT - 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STOCK INCENTIVE PLANS - RSU Narratives (Details) link:presentationLink link:calculationLink link:definitionLink 2446428 - Disclosure - STOCK INCENTIVE PLANS - RSU Rollforward (Details) link:presentationLink link:calculationLink link:definitionLink 2447429 - Disclosure - STOCK INCENTIVE PLANS - Stock Option Narratives (Details) link:presentationLink link:calculationLink link:definitionLink 2448430 - Disclosure - STOCK INCENTIVE PLANS - Stock Option Roll-forward (Details) link:presentationLink link:calculationLink link:definitionLink 2449431 - Disclosure - STOCK INCENTIVE PLANS - Fair Value Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 2450432 - Disclosure - STOCK INCENTIVE PLANS - Stock-based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 2151110 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 2352309 - Disclosure - INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 2453433 - Disclosure - INCOME TAXES - Components of Income Tax Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2454434 - Disclosure - INCOME TAXES - Reconciliation of Effective Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 2455435 - Disclosure - INCOME TAXES - Deferred Tax Asset (Liability) (Details) link:presentationLink link:calculationLink link:definitionLink 2456436 - Disclosure - INCOME TAXES - Narratives (Details) link:presentationLink link:calculationLink link:definitionLink 2157111 - Disclosure - NET (LOSS) INCOME PER SHARE link:presentationLink link:calculationLink link:definitionLink 2358310 - Disclosure - NET (LOSS) INCOME PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 2459437 - Disclosure - NET (LOSS) INCOME PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 2460438 - Disclosure - NET (LOSS) INCOME PER SHARE - Anti-dilutive Securities (Details) link:presentationLink link:calculationLink link:definitionLink 2161112 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 2162113 - Disclosure - EMPLOYEE BENEFIT PLANS link:presentationLink link:calculationLink link:definitionLink 2463439 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) link:presentationLink link:calculationLink link:definitionLink 2164114 - Disclosure - RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 2465440 - Disclosure - RELATED PARTY TRANSACTIONS (Details) link:presentationLink link:calculationLink link:definitionLink