SHARE-BASED COMPENSATION PLANS - Expense by Classification (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 685	$ 853	$ 1,895	$ 2,577
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	334	296	921	829
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 351	$ 557	$ 974	$ 1,748