REVENUE RECOGNITION - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 39,398	$ 48,686	$ 127,367	$ 157,326
RPO Recruitment
Disaggregation of Revenue [Line Items]
Revenue	18,876	23,801	62,316	75,775
Contracting
Disaggregation of Revenue [Line Items]
Revenue	$ 20,522	$ 24,885	$ 65,051	$ 81,551