STOCK PLANS, Stock Options (Details) - Stock Options [Member] - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Stock options, number of shares [Roll Forward]
Balance, beginning of period (in shares)	329,160
Granted (in shares)	77,666
Expired (in shares)	0
Cancelled / Forfeited (in shares)	(1,689)
Exercised (in shares)	0
Balance, end of period (in shares)	405,137
Exercisable (vested) at end of period (in shares)	224,595
Stock options, weighted average exercise price [Roll Forward]
Balance, beginning of period (in dollars per share)	$ 8.23
Granted (in dollars per share)	10.86
Expired (in dollars per share)	0
Cancelled / Forfeited (in dollars per share)	12.41
Exercised (in dollars per share)	0
Balance, end of period (in dollars per share)	8.72
Exercisable (vested) at end of period (in dollars per share)	$ 6.95
Stock options, additional disclosures [Abstract]
Outstanding, aggregate intrinsic value	$ 1,192,539
Exercisable (vested), aggregate intrinsic value	$ 1,038,576
Outstanding, weighted average remaining contractual term	7 years 1 month 28 days
Exercisable (vested), weighted average remaining contractual term	5 years 8 months 16 days
Weighted average fair value of options granted (in dollars per share)	$ 1.82
Intrinsic value of options exercised	$ 0	$ 88,000
Fair value of awards vested	141,000	$ 114,000
Unrecognized compensation related to non-vested stock options	$ 365,000
Unrecognized compensation cost, period for recognition	2 years 8 months 26 days
Recognized compensation cost	$ 35,000
Weighted average assumptions used in valuation [Abstract]
Risk free interest rate	2.47%
Expected dividend yield	0.00%
Expected life	5 years
Expected price volatility	11.86%