SHARE-BASED COMPENSATION - Options Activity (Details)	3 Months Ended
	Mar. 31, 2019 USD ($) $ / shares shares
Options activity [Roll Forward]
Options beginning	755,210
Options granted	0
Options assumed in Merger	0
Options exercised	(180,300)
Options forfeited	0
Options expired	(24,828)
Options ending	550,082
Weighted average exercise price - beginning | $ / shares	$ 9.42
Weighted average exercise price - options exercised | $ / shares	1.34
Weighted average exercise price - options forfeited | $ / shares	0
Weighted average excercise price - options assumed in merger | $ / shares	0
Weighted average exercise price - options expired | $ / shares	11.69
Weighted average exercise price - ending | $ / shares	$ 11.97
Weighted Average Remaining Contractual Term (Years) Options	1 year 7 months 6 days
Intrinsic Value Options | $	$ 2,450
Options vested and expected to vest	550,082
Options vested and exercisable	550,082
Weighted average exercise price options vested and expected to vest | $ / shares	$ 11.97
Weighted average exercise price options vested and exerciable | $ / shares	$ 11.97
Weighted average remaining contractual period (Years) options vested and expected to vest	1 year 7 months 6 days
Weighted average remaining contractual period (years) options vested and exercisable	1 year 7 months 6 days
Intrinsic value options vested and expected to vest | $	$ 2,450
Intrinsic value options vested and exercisable | $	$ 2,450
Weighted average remaining recognition period in years	0 years
Unamortized compensation expense, net of estimated forfeitures | $	$ 0