STOCK COMPENSATION - STOCK OPTIONS ACTIVITY (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of Units
Outstanding at beginning (in shares)	4,850,784	2,384,688
Granted (in shares)		2,956,000
Exercised (in shares)	(492,460)	(3,751)
Cancelled (in shares)	(304,208)	(486,153)
Outstanding at ending (in shares)	4,054,116	4,850,784	2,384,688
Exercisable (in shares)	2,836,366
Weighted Average Exercise Price
Outstanding at beginning (in dollars per share)	$ 1.76	$ 3.35
Granted (in dollars per share)		0.76
Exercised (in dollars per share)	0.84	0.70
Cancelled (in dollars per share)	1.01	3.58
Outstanding at ending (in dollars per share)	1.92	$ 1.76	$ 3.35
Exercisable (in dollars per share)	$ 2.36
Beginning balance - Weighted Average Remaining Contractual Terms (in years)	2 years 3 months 14 days	3 years 6 months 3 days	4 years 1 month 24 days
Ending balance - Weighted Average Remaining Contractual Terms (in years)	2 years 3 months 14 days	3 years 6 months 3 days	4 years 1 month 24 days
Weighted Average Remaining Contractual Terms, Exercisable (in years)	1 year 10 months 6 days
Options intrinsic value	$ 1.9	$ 2.7