NET DEFERRED TAX ASSET AND INCOME TAXES - Components of income tax provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Deferred (benefit) expense	$ (494)	$ 888	$ 957
Income tax provision	1,709	2,914	2,589
Components of income tax provision
Federal	1,986	1,831	1,344
State	217	195	288
Current provision	2,203	2,026	1,632
Federal	(455)	840	852
State	(39)	48	105
Deferred (benefit) expense	(494)	888	957
Income tax provision	$ 1,709	$ 2,914	$ 2,589