INCOME TAXES - UNRECOGNIZED TAX BENEFITS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Deferred tax liability not recognized
Deferred tax asset, change in tax rate		$ 443
Federal corporate tax rate		34.00%	34.00%	34.00%
Amount of temporary difference for which deferred tax liability is not required to be provided		$ 1,300
Unrecorded deferred tax liability		272
Unrecognized Tax Benefits
Interest and penalties		0	$ 0
Accrued Interest and penalties		0	$ 0
ASU 2018-02
Deferred tax liability not recognized
Reclassified out of retained earnings into accumulated other comprehensive income		$ 164
Forecast
Deferred tax liability not recognized
Federal corporate tax rate	21.00%