STOCK PLANS, Stock Options (Details) - Stock Options [Member] - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Stock options, number of shares [Roll Forward]
Balance, beginning of period (in shares)	425,373
Granted (in shares)	178,087
Expired (in shares)	0
Cancelled / Forfeited (in shares)	0
Exercised (in shares)	(15,040)
Balance, end of period (in shares)	588,420
Exercisable (vested) at end of period (in shares)	293,924
Stock options, weighted average exercise price [Roll Forward]
Balance, beginning of period (in dollars per share)	$ 8.30
Granted (in dollars per share)	11.19
Expired (in dollars per share)	0
Cancelled / Forfeited (in dollars per share)	0
Exercised (in dollars per share)	3.11
Balance, end of period (in dollars per share)	9.31
Exercisable (vested) at end of period (in dollars per share)	$ 7.59
Stock options, additional disclosures [Abstract]
Outstanding, aggregate intrinsic value	$ 510,098
Exercisable (vested), aggregate intrinsic value	$ 510,098
Outstanding, weighted average remaining contractual term	7 years 5 months 8 days
Exercisable (vested), weighted average remaining contractual term	5 years 7 months 20 days
Weighted average fair value of options granted (in dollars per share)	$ 1.41
Intrinsic value of options exercised	$ 96,000	$ 0
Fair value of awards vested	149,000	$ 141,000
Unrecognized compensation related to non-vested stock options	$ 460,000
Unrecognized compensation cost, period for recognition	2 years 10 months 10 days
Recognized compensation cost	$ 42,000
Weighted average assumptions used in valuation [Abstract]
Risk free interest rate	1.42%
Expected dividend yield	0.00%
Expected life	5 years
Expected price volatility	10.18%