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, 2016	Dec. 31, 2015	Dec. 31, 2014
Federal	$ 1,344	$ 2,186	$ 1,057
State	288	432	226
Current provision	1,632	2,618	1,283
Federal	852	896	(553)
State	105	49	(120)
Deferred expense (benefit)	957	945	(673)
Income tax provision	$ 2,589	$ 3,563	$ 610