Securities (Details 4) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Amortized Cost
Due in one year or less	$ 7,562	$ 7,452
Due after one year through five years	32,048	27,480
Due after five years through ten years	101,935	107,187
Due after ten years		0
Total held-to-maturity debt securities	141,545	142,119
Fair Value
Due in one year or less	7,582	7,469
Due after one year through five years	32,543	27,866
Due after five years through ten years	102,320	107,497
Due after ten years		0
Total held-to-maturity debt securities	$ 142,445	$ 142,832