STOCK BASED COMPENSATION - Summary of Stock Options Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
STOCK BASED COMPENSATION
Number of stock options outstanding, Beginning of period	185,054	37,786
Number of stock options outstanding, Granted	94,522	149,801
Number of stock options outstanding, Expired	(2,000)	(2,533)
Number of stock options outstanding, End of period	277,576	185,054
Number of stock options Exercisable, End of period	183,054	35,253
Weighted average exercise price, Beginning of period	$ 7.70	$ 37.42
Weighted average exercise price, Granted	3.91	1.67
Weighted average exercise price, Expired	73.54	93.80
Weighted average exercise price, End of period	6.18	7.70
Weighted average exercise price Exercisable, End of period	$ 7.35	$ 33.37