NET DEFERRED TAX ASSETS AND INCOME TAXES - Components of income tax provision (Details) - Components of income tax provision - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Federal	$ 2,186	$ 1,057	$ 940
State	432	226	103
Current provision	2,618	1,283	1,043
Federal	896	(553)	$ 215
State	$ 49	$ (120)
Change in valuation allowance			$ (349)
Deferred expense (benefit)	$ 945	$ (673)	(134)
Income tax provision	$ 3,563	$ 610	$ 909