AFFORDABLE HOUSING TAX CREDIT LIMITED PARTNERSHIP (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Equity Method Investments and Joint Ventures [Abstract]
Affordable housing tax credit investment	$ 3,000	$ 2,000
Less amortization	231	93
Net affordable housing tax credit investment	2,769	1,907
Unfunded commitment	$ 2,257	1,617
Funding period for unfunded commitment	10 years
Tax credits and other tax benefits recognized	$ 180	103	$ 14
Tax credit amortization expense included in provision for income taxes	$ 138	$ 81	$ 12