STOCK-BASED COMPENSATION PLANS - Summary of stock option activity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
Summary of stock option activity under the option Plan
Exercisable Number of Options	562
Number of Shares, Outstanding at ending balance	562
Employee Stock Option
Summary of stock option activity under the option Plan
Number of Shares, Outstanding at beginning balance	793
Number of Shares, Forfeited	(206)
Number of Shares, Exercised	(25)
Exercisable Number of Options	562
Number of Shares, Outstanding at ending balance	562	793
Weighted Average Exercise Price, Outstanding at beginning balance | $ / shares	$ 2.67
Weighted Average Exercise Price, Forfeited | $ / shares	6.30
Weighted Average Exercise Price, Exercised | $ / shares	5.36
Weighted Average Exercise Price, Outstanding at ending balance | $ / shares	1.22	$ 2.67
Weighted Average Exercise Price, Exercisable at ending balance | $ / shares	$ 1.22
Weighted Average Remaining Contractual Life (Years)	2 years 9 months 18 days	5 years 10 days
Weighted Average Remaining Contractual Life, Exercisable (Years)	2 years 9 months 18 days
Aggregate Intrinsic Value, Outstanding | $	$ 3,807	$ 8,908
Aggregate Intrinsic Value, Exercisable | $	$ 3,807