STOCKHOLDERS' EQUITY (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($) $ / shares shares
Stock options
Balance at beginning of period | shares	247,400
Granted | shares	262,000
Exercised | shares	(13,000)
Forfeited | shares	(38,333)
Balance at end of period | shares	458,067
Exercisable at end of period | shares	196,066
Weighted average exercise price
Balance at beginning of period | $ / shares	$ 8.75
Granted | $ / shares	7.30
Exercised | $ / shares	4.53
Forfeited | $ / shares	6.01
Balance at end of period | $ / shares	8.27
Exercisable at end of period | $ / shares	$ 9.57
Weighted average remaining contractual term
Balance	7 years 10 months 24 days
Exercisable at the end of period	5 years 4 months 24 days
Aggregate intrinsic value
Balance at end of period | $	$ 105,207
Exercisable at end of period | $	$ 105,206