SHARE-BASED COMPENSATION - Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2020
Number of Options
Options beginning (in shares)	543,000
Options granted (in shares)	66,000
Options ending (in shares)	609,357
Options vested and expected to vest as of: (in shares)	609,000
Options vested and exercisable (in shares)	542,582
Weighted average remaining recognition period in years	1 year
Unamortized compensation expense	$ 50
Weighted Average Exercise Price
Weighted average exercise price - beginning (in dollars per shares)	$ 12.06
Weighted Average Exercise Price - granted (in dollars per shares)	5.40
Weighted average exercise price - ending (in dollars per shares)	11.33
Weighted average exercise price - vested and expected (in dollars per shares)	11.33
Weighted average exercise price - vested and exercisable (in dollars per shares)	$ 12.06
Weighted Average Remaining Contractual Term (Years)
Weighted Average Remaining Contractual Life, Outstanding	4 years 3 months 18 days
Weighted Average Remaining Contractual Life, Vested and Expected to Vest	4 years 3 months 18 days
Weighted Average Remaining Contractual Life, Vested and Exercisable	3 years 8 months 12 days
Intrinsic Value
Intrinsic Value, Outstanding	$ 0
Intrinsic Value, Vested and Expected to Vest	0
Intrinsic Value, Vested and Exercisable	$ 0