SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Net Loss (income) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net income (loss) attributable to common shareholders
Net income (loss)	$ (1,154)	$ (934)
Net income (loss)	$ (1,154)	$ (934)
Weighted-average common shares outstanding:
Weighted-average common shares outstanding: basic	73,194,171	61,321,424
Weighted-average common shares outstanding: diluted	73,194,171	61,321,424
Income (loss) per common share – Basic and diluted
Net income (loss) per common share - basic (in usd per share)	$ (0.02)	$ (0.02)
Net income (loss) per common share - diluted (in usd per share)	$ (0.02)	$ (0.02)