SHARE-BASED COMPENSATION - Options Activity (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) $ / shares shares
Number of Options
Options beginning (in shares) | shares	755,210
Options exercised (in shares) | shares	(180,300)
Options forfeited (in shares) | shares	0
Options expired in period (in shares) | shares	(32,328)
Options ending (in shares) | shares	542,582
Weighted Average Exercise Price
Weighted average exercise price - beginning (in dollars per shares) | $ / shares	$ 9.42
Options weighted average exercise price (in dollars per shares) | $ / shares	1.34
Options forfeited in period weighted average exercise price (in dollars per shares) | $ / shares	0
Options expired in period weighted average exercise price (in dollars per shares) | $ / shares	10.21
Weighted average exercise price - ending (in dollars per shares) | $ / shares	$ 12.06
Options vested and expected to vest, outstanding, weighted average remaining contractual term	10 months 24 days
Options, outstanding, intrinsic value | $	$ 0
Options, vested and expected to vest, outstanding, number (in shares) | shares	542,582
Options, vested and expected to vest, outstanding, weighted average exercise price (in dollars per shares) | $ / shares	$ 12.06
Options, vested and expected to vest, exercisable, weighted average remaining contractual term	10 months 24 days
Options, vested and expected to vest, exercisable, aggregate intrinsic value | $	$ 0
Weighted average remaining recognition period in years	0 years
Unamortized compensation expense | $	$ 0