SIGNIFICANT ACCOUNTING POLICIES (Policy)	3 Months Ended
SIGNIFICANT ACCOUNTING POLICIES (Policy)	Mar. 31, 2022
Accounting Policies [Abstract]
Recent Accounting Pronouncements	RECENT ACCOUNTING PRONOUNCEMENTS In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. The standard became effective for interim and annual periods beginning after December 15, 2020, with early adoption permitted. We adopted ASU 2019-12 during the quarter beginning January 1, 2021, using the prospective approach except for hybrid tax regimes, which we adopted using the modified retrospective approach. The adoption of ASU 2019-12 resulted in no material impact to the Company’s financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments — Credit Losses (Topic 326): This update establishes a new approach to estimate credit losses on certain financial instruments. The update requires financial assets measured at amortized cost to be presented at the net amount expected to be collected. The amended guidance will also update the impairment model for available-for-sale debt securities, requiring entities to determine whether all or a portion of the unrealized loss on such securities is a credit loss. The Company is currently evaluating this standard and the potential effects of these changes to its consolidated financial statements and will adopt this new standard in the fiscal year beginning January 1, 2023.
Reclassification, Comparability Adjustment	RECLASSIFICATION The Company reclassified its presentation of restricted cash and restricted cash equivalents included in funds held for clients as of March 31, 2021 in the Condensed Consolidated Statements of Cash Flows to conform to the current period presentation. Such reclassification had no effect on the consolidated financial position or consolidated results of operations of the Company.
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy	CASH, CASH EQUIVALENTS, AND RESTRICTED CASHThe Company considers all highly liquid investments with an original maturity of 90 days or less at the time of purchase to be cash equivalents. Cash equivalents include investments in an institutional money market fund, which invests in U.S. Treasury bills, notes and bonds, and/or repurchase agreements, backed by such obligations. Carrying value approximates fair value. Restricted cash consists of cash balances which are restricted as to withdrawal or usage. As of March 31, 2022, the Company has $500 of restricted cash related to our agreement with Atlantic Capital Bank.
Accumulated Other Comprehensive Income (Loss)	ACCUMULATED OTHER COMPREHENSIVE LOSS As of March 31, 2022 and December 31, 2021, accumulated other comprehensive loss consisted of net unrealized gains and losses on available-for-sale securities.
Use of Estimates	USE OF ESTIMATES Preparation of the Condensed Consolidated Financial Statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of the assets and liabilities, the disclosure of contingent assets and liabilities at the date of the Condensed Consolidated Financial Statements and the reported amounts of revenues and expenses during the reporting period. These estimates are subjective in nature and involve judgments. The more significant estimates made by management include the valuation allowance for the gross deferred tax assets, the determination of the fair value of its long-lived assets, and the fair value of assets acquired and liabilities assumed during acquisitions. We base our estimates on historical experience and on various other assumptions management believes reasonable under the given circumstances. These estimates could be materially different under different conditions and assumptions.