STOCK PLANS, Stock Options (Details) - Stock Options [Member] - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Stock options, number of shares [Roll Forward]
Balance, beginning of period (in shares)	684,837
Granted (in shares)	0
Expired (in shares)	0
Cancelled / Forfeited (in shares)	0
Exercised (in shares)	(21,159)
Balance, end of period (in shares)	663,678
Exercisable (vested) at end of period (in shares)	578,314
Stock options, weighted average exercise price [Roll Forward]
Balance, beginning of period (in dollars per share)	$ 8.41
Granted (in dollars per share)	0
Expired (in dollars per share)	0
Cancelled / Forfeited (in dollars per share)	0
Exercised (in dollars per share)	3.83
Balance, end of period (in dollars per share)	8.56
Exercisable (vested) at end of period (in dollars per share)	$ 8.39
Stock options, additional disclosures [Abstract]
Outstanding, aggregate intrinsic value	$ 299,238
Exercisable (vested), aggregate intrinsic value	$ 299,238
Outstanding, weighted average remaining contractual term	5 years 2 months 12 days
Exercisable (vested), weighted average remaining contractual term	4 years 9 months 29 days
Intrinsic value of options exercised	$ 97,000	$ 125,000
Fair value of awards vested	123,000	$ 142,000
Unrecognized compensation related to non-vested stock options	$ 131,000
Unrecognized compensation cost, period for recognition	2 years 1 month 2 days
Recognized compensation cost	$ 27,000