Fair Value Measurements (Details 1) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Loans held for sale	$ 25,873	$ 25,096
Residential Mortgage Backed Securities [Member]
Loans held for sale	25,873	25,096
Aggregate Unpaid Principal Balance	25,469	24,674
Difference	$ 404	$ 422