NET INCOME PER SHARE (Details) - Stock Options [Member] - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net Income Per Share [Abstract]
Common equivalent shares attributable to stock options included in calculation of diluted net income per share (in shares)	41,428	100,219	51,345	105,285
Antidilutive securities excluded from earnings per share calculation (in shares)	63,750	0	63,750	0