INCOME TAXES - Reconciliation of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Taxes calculated at statutory rate	$ (4,526)	$ (5,026)
Increase (decrease) resulting from:
Tax-exempt interest, net	(241)	(524)
Deferred compensation	(218)	(315)
Write-down of net deferred tax asset resulting from the Tax Cuts and Jobs Act	0	3,595
Change in valuation allowance	11,056	0
Other	(105)	(328)
Total income tax (benefit) expense	$ 5,966	$ (2,598)