OTHER COMPREHENSIVE LOSS - Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain on sale of securities	$ (49)	$ 347
Interest Expense	7,508	6,026
Income tax expense (benefit)	(5,966)	2,598
Net loss	(27,516)	(11,761)
Securities available-for-sale | Interest Rate Contract | Reclassifications Out of Accumulated Other Comprehensive Income/Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gain on sale of securities	49	(347)
Income tax expense (benefit)	0	122
Net loss	49	(225)
Derivative instruments designated as cash flow hedges | Interest Rate Contract | Reclassifications Out of Accumulated Other Comprehensive Income/Loss
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	(267)	(17)
Income tax expense (benefit)	0	6
Net loss	$ (267)	$ (11)