Investment Securities (Details 2) $ in Thousands	Mar. 31, 2017 USD ($)
Amortized cost and fair value of debt securities by contractual maturity
Amortized Cost, Due after one year through five years	$ 829
Amortized Cost, Due after five years through ten years	15,201
Amortized Cost, Due after ten years	69,158
Amortized Cost, Total	85,188
Total debt securities, Amortized Cost	166,920
Fair Value, Due after one year through five years	855
Fair Value, Due after five years through ten years	15,243
Fair Value, Due after ten years	66,300
Fair Value, Total	82,398
Total debt securities, Fair Value	162,518
U.S. Government-sponsored mortgage-backed and related securities
Amortized cost and fair value of debt securities by contractual maturity
Total debt securities, Amortized Cost	81,732
Total debt securities, Fair Value	$ 80,120