INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
INCOME TAXES
Effective income tax rates (as a percent)	14.10%	61.90%	527.90%	56.90%
Pretax income	$ (1,662)	$ (1,982)	$ 129	$ (4,099)
Unrecognized tax benefits	2,800		2,800
Unrecognized tax benefits that would impact the company's effective tax rate	2,800		2,800
Interest and penalties accrued	$ 900		$ 900