INCOME TAXES, Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Components of effective federal and state tax rates to income before provision for income tax benefit [Abstract]
Computed expected tax expense provision, at federal rate	$ 663	$ 6,140	$ 6,052	$ 11,387
State tax, net of federal tax benefit	11	584	544	1,106
Other	23	31	(104)	(28)
Total income taxes	697	$ 6,755	6,492	$ 12,465
Uncertain tax positions	$ 0		$ 0		$ 0