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STOCK BASED COMPENSATION - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	May 21, 2021	Apr. 28, 2020	Apr. 18, 2019	Jul. 18, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining term for stock options outstanding	8 years 6 months
Unrecognized compensation costs related to non-vested stock options	$ 0.1
Unrecognized compensation costs related to non-vested stock options, period recognized	6 months
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs related to non-vested stock options, period recognized	2 years
Unrecognized compensation costs related to non-vested stock units, period recognized	$ 0.4
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares reserved for future issuance	1,236,658
Stock-based compensation expense	$ 0.9	$ 0.4
2013 Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock shares reserved for future issuance			1,500,000	350,000	66,000	20,000
Stock option vesting period	10 years