SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) client	Dec. 31, 2019 USD ($) segments	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) Segment	Dec. 31, 2018 USD ($) client	Dec. 31, 2017 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of reportable segments				3		3
Unbilled receivables, current | $	$ 3,600	$ 3,600	$ 3,600	$ 3,600	$ 3,600	$ 3,600	$ 1,800
Increase (decrease) in prepaid and other assets | $		(652)					190
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents | $	$ 31,718	$ 31,718	$ 31,718	$ 31,718	$ 31,718	$ 31,718	$ 41,060	$ 22,006
Furniture and equipment | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Furniture and equipment | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Useful Life	8 years
Capitalized software costs | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Capitalized software costs | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Computer equipment | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Computer equipment | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, number of customers | client			25
Concentration risk, percentage					90.00%
Customer Concentration, Customer One | Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, number of customers | client			2				1
Concentration risk, percentage					58.00%		44.00%
Customer Concentration, Customer One | Accounts Receivable
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, number of customers | client			3				1
Concentration risk, percentage					10.00%
Customer Concentration Risk | Accounts Receivable
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage							10.00%