SHAREHOLDERS' EQUITY - Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Stock Units
Outstanding beginning balance (in shares)	613	615
Outstanding ending balance (in shares)	450	613	615
Grant Date Weighted- Average Fair Value
Grant Date Weighted-Average Fair Value, Granted (in dollars per share)	$ 1.54	$ 1.45	$ 1.50
Restricted Stock Units (RSUs)
Restricted Stock Units
Outstanding beginning balance (in shares)	4	4
Granted (in shares)	36	35
Vested (in shares)	(37)	(35)
Outstanding ending balance (in shares)	3	4	4
Grant Date Weighted- Average Fair Value
Grant Date Weighted-Average Fair Value, Outstanding (in dollars per share)	$ 2.68	$ 3.77
Grant Date Weighted-Average Fair Value, Granted (in dollars per share)	2.50	2.56
Grant Date Weighted-Average Fair Value, Vested (in dollars per share)	2.47	2.69
Grant Date Weighted-Average Fair Value, Outstanding (in dollars per share)	3.03	2.68	$ 3.77
Intrinsic Value
Intrinsic Value, Outstanding (in dollars per share)	0	0
Intrinsic Value, Granted (in dollars per share)	0	0
Intrinsic Value, Vested (in dollars per share)	0	0
Intrinsic Value, Outstanding (in dollars per share)	$ 0	$ 0	$ 0