LOSS PER SHARE - Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net loss	$ (7,588)	$ (7,870)	$ (8,626)	$ (777)	$ (5,923)	$ (12,774)	$ (24,084)	$ (19,474)
Weighted-average number of common shares - basic (in shares)	145,334,992			140,521,244			145,203,515	140,054,738
Weighted-average number of common shares - basic (in shares)				120,270,444				112,688,338
Dilutive effect of stock options and awards (in shares)	0			0			0	0
Weighted-average number of proportionate voting shares - basic	0			50,627			0	68,416
Weighted-average number of common shares - diluted (in shares)	145,334,992			140,521,244			145,203,515	140,054,738
Weighted-average number of common shares - diluted (in shares)				120,270,444				112,688,338
Weighted-average number of proportionate voting shares - diluted	0			50,627			0	68,416
Loss per common share - basic (in usd per share)	$ (0.05)			$ (0.01)			$ (0.17)	$ (0.14)
Loss per common share - diluted (in usd per share)	(0.05)			(0.01)			(0.17)	(0.14)
Loss per proportionate voting share - basic (in usd per share)	0			(2.21)			0	(55.62)
Loss per proportionate voting share - diluted (in usd per share)	$ 0			$ (2.21)			$ 0	$ (55.62)