REVENUE RECOGNITION - Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 14,006	$ 7,173	$ 29,297	$ 25,342
Royalty and license
Disaggregation of Revenue [Line Items]
Revenue	13,931	7,068	29,079	25,017
Fixed fee license revenue
Disaggregation of Revenue [Line Items]
Revenue	7,662	1,247	10,653	4,346
Per-unit royalty revenue
Disaggregation of Revenue [Line Items]
Revenue	6,269	5,821	18,426	20,671
Development, services, and other
Disaggregation of Revenue [Line Items]
Revenue	$ 75	$ 105	$ 218	$ 325