INCOME TAXES - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
U.S. Federal income tax statutory rate	35.00%	35.00%	35.00%
Taxes calculated at statutory rate	$ 4,654	$ 5,460	$ 9,264
Increase (decrease) resulting from:
Tax-exempt interest, net	(615)	(766)	(923)
Executive officer life insurance proceeds	0	0	(1,050)
Other	(182)	(111)	67
Total income tax expense	$ 3,857	$ 4,583	$ 7,358