SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($) segments	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($) client	Dec. 31, 2024 USD ($) Segment	Dec. 31, 2023 USD ($) client	Dec. 31, 2022 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net assets	$ (40,428,000)	$ (40,428,000)	$ (40,428,000)	$ (40,428,000)	$ (40,428,000)	$ (48,554,000)	$ (45,792,000)
Compensation expense, bonus	0					500,000
Number of reportable segments		3			3
Unbilled receivables	5,925,000	$ 5,925,000	5,925,000	5,925,000	$ 5,925,000	5,163,000
Share-based compensation	216,000					250,000
Goodwill, impairment loss	0					0
Accumulated deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net assets	$ 430,017,000	$ 430,017,000	$ 430,017,000	$ 430,017,000	$ 430,017,000	425,247,000	$ 427,394,000
Cumulative-effect adjustment from adoption of ASU 2016-13, Credit Losses | Accumulated deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net assets						$ 51,000
Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, number of customers | client				25		25
Customer Concentration Risk | Top 25 Clients | Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage						85.00%
Customer Concentration Risk | Three Customers | Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage			46.00%
Customer Concentration Risk | Two Customers | Revenue
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage						50.00%
Customer Concentration Risk | One Contracting Customer | Accounts Receivable
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Concentration risk, percentage			20.00%			20.00%