Fair Value Measurements (Details 1) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans held for sale	$ 25,980	$ 51,629
Residential Mortgage Backed Securities [Member]
Loans held for sale	25,980	51,629
Aggregate Unpaid Principal Balance	25,473	51,021
Difference	$ 507	$ 608