Securities (Details 4) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Held-to-maturity securities, Amortized Cost
Due in one year or less	$ 8,430	$ 9,249
Due after one year through five years	13,893	14,069
Due after five years through ten years	122,519	122,585
Due after ten years	168	168
Total	145,010	146,071
Held-to-maturity securities, Fair value
Due in one year or less	8,478	9,294
Due after one year through five years	14,422	14,341
Due after five years through ten years	127,041	122,853
Due after ten years	198	198
Total	$ 150,139	$ 146,686