STOCK PLANS, Stock Options (Details) - Stock Options [Member] - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Sep. 30, 2022
Stock options, number of shares [Roll Forward]
Balance, beginning of period (in shares)	663,678	684,837
Granted (in shares)	0	0
Expired (in shares)	0	0
Cancelled / Forfeited (in shares)	0	0
Exercised (in shares)	(51,485)	(72,644)
Balance, end of period (in shares)	612,193	612,193
Exercisable (vested) at end of period (in shares)	526,829	526,829
Stock options, weighted average exercise price [Roll Forward]
Balance, beginning of period (in dollars per share)	$ 8.56	$ 8.41
Granted (in dollars per share)	0	0
Expired (in dollars per share)	0	0
Cancelled / Forfeited (in dollars per share)	0	0
Exercised (in dollars per share)	5.44	4.97
Balance, end of period (in dollars per share)	8.82	8.82
Exercisable (vested) at end of period (in dollars per share)	$ 8.67	$ 8.67
Stock options, additional disclosures [Abstract]
Outstanding, aggregate intrinsic value	$ 523,161	$ 523,161
Exercisable (vested), aggregate intrinsic value	$ 523,161	$ 523,161
Outstanding, weighted average remaining contractual term	4 years 11 months 12 days	4 years 11 months 12 days
Exercisable (vested), weighted average remaining contractual term	4 years 6 months 29 days	4 years 6 months 29 days
Intrinsic value of options exercised		$ 305,000	$ 125,000
Fair value of awards vested		123,000	$ 142,000
Unrecognized compensation related to non-vested stock options	$ 87,000	$ 87,000
Unrecognized compensation cost, period for recognition		1 year 10 months 24 days
Recognized compensation cost	$ 22,000	$ 71,000