INCOME TAXES, Summary of Provision for Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Federal [Abstract]
Current	$ 3,544	$ 4,652
Deferred	1,439	259
Federal income tax expense	4,983	4,911
State [Abstract]
Current	276	731
Deferred	536	69
State income tax expense	812	800
Total income taxes	$ 5,795	$ 5,711