Affordable Housing Tax Credit Limited Partnership (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Equity Method Investments and Joint Ventures [Abstract]
Affordable housing tax credit investment	$ 1,000		$ 1,000
Less amortization	32		12
Net affordable housing tax credit investment	968		988
Unfunded commitment	$ 865		$ 907
Funding period for unfunded commitment (in years)	10 years
Tax credits and other tax benefits recognized	$ 28	$ 0
Tax credit amortization expense included in provision for income taxes	$ 20	$ 0