Securities Amortized cost and fair value of securities available for sale by contractual maturity (Details) $ in Thousands	Jun. 30, 2015 USD ($)
Amortized Cost
Due in one year or less	$ 240
Due after one year through five years	8,983
Due after five years through ten years	28,048
Due after ten years	97,523
Total	347,075
Fair Value
Due in one year or less	242
Due after one year through five years	9,253
Due after five years through ten years	27,922
Due after ten years	98,148
Total	351,990
Mortgage-backed securities [Member]
Amortized Cost
Total	160,478
Fair Value
Total	164,232
Other asset backed securities [Member]
Amortized Cost
Total	51,803
Fair Value
Total	$ 52,193