Affordable Housing Projects Tax Credit Partnership (Details Textual) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Other Assets [Member]
Investments in Affordable Housing Projects [Abstract]
Amortization Method Qualified Affordable Housing Project Investments	$ 9,000	$ 9,200
Unfunded Commitments [Member]
Investments in Affordable Housing Projects [Abstract]
Qualified Affordable Housing Project Investments, Commitment	5,383
Unfunded Commitments [Member] | Other Liabilities [Member]
Investments in Affordable Housing Projects [Abstract]
Qualified Affordable Housing Project Investments, Commitment	$ 5,400	$ 6,200