STOCK PLANS, Stock Options (Details) - Stock Options [Member] - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Stock options, number of shares [Roll Forward]
Balance, beginning of period (in shares)	627,814
Granted (in shares)	42,965
Expired (in shares)	0
Cancelled / Forfeited (in shares)	0
Exercised (in shares)	(18,524)
Balance, end of period (in shares)	652,255
Exercisable (vested) at end of period (in shares)	488,666
Stock options, weighted average exercise price [Roll Forward]
Balance, beginning of period (in dollars per share)	$ 8.58
Granted (in dollars per share)	10.25
Expired (in dollars per share)	0
Cancelled / Forfeited (in dollars per share)	0
Exercised (in dollars per share)	3.51
Balance, end of period (in dollars per share)	8.83
Exercisable (vested) at end of period (in dollars per share)	$ 8.41
Stock options, additional disclosures [Abstract]
Outstanding, aggregate intrinsic value	$ 939,896
Exercisable (vested), aggregate intrinsic value	$ 916,565
Outstanding, weighted average remaining contractual term	6 years 10 days
Exercisable (vested), weighted average remaining contractual term	5 years 3 months 7 days
Intrinsic value of options exercised	$ 125,000	$ 63,000
Fair value of awards vested	142,000	$ 182,000
Unrecognized compensation related to non-vested stock options	$ 250,000
Unrecognized compensation cost, period for recognition	2 years 7 months 2 days
Recognized compensation cost	$ 28,000