STOCK-BASED COMPENSATION (Schedule of activity in the restricted stock plan) (Details) - Restricted Stock [Member] - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Shares
Unvested restricted stock outstanding, beginning of period	86,500
Granted, other than options	80,000
Vested, other than options	(89,900)
Unvested restricted stock outstanding, end of period	76,600	86,500
Weighted Average Exercise Price
Weighted Average Exercise Price, beginning of period	$ 14.85
Weighted Average Exercise Price, Granted, other than options	15.87
Weighted Average Exercise Price, Vested, other than options	14.54
Weighted Average Exercise Price, ending of period	$ 15.50	$ 14.85
Weighted Average Remaining Contractual Term	4 years 6 months	3 years 9 months 18 days