Investments in Qualified Affordable Housing Projects (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Equity Method Investments and Joint Ventures [Abstract]
Carrying value of qualified affordable housing project investments	$ 3,623,000		$ 6,331,000
Funding obligation related to qualified affordable housing projects	2,450,000
Funding obligation related to qualified affordable housing projects	0
Tax credit amortization	262,000	$ 324,000
Tax credits and other benefits	(460,000)	(471,000)
Total	$ (198,000)	$ (147,000)