INCOME TAXES - UNRECOGNIZED TAX BENEFITS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Deferred tax liability not recognized
Amount of temporary difference for which deferred tax liability is not required to be provided	$ 1,300
Unrecorded deferred tax liability	441
Unrecognized Tax Benefits
Interest and penalties	$ 0	$ 0
Accrued Interest and penalties		$ 0	$ 0