INCOME TAXES (Schedule of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal, current	$ 17,562	$ 14,395	$ 10,039
State, current	539	31	0
Total current income tax provision	18,101	14,426	10,039
Deferred:
Federal, deferred	509	(662)	(425)
State, deferred	(61)	(66)	177
Total deferred income tax provision	448	(728)	(248)
Total income tax provision	$ 18,549	$ 13,698	$ 9,791