Securities - Summary of Scheduled Maturities (Details) $ in Thousands	Mar. 31, 2017 USD ($)
Amortized Cost
Due in one year or less	$ 2,002
Due after one year through five years	23,925
Due after five through ten years	20,701
Due after ten years	1,012
Amortized Cost	97,904
Fair Value
Due in one year or less	1,999
Due after one year through five years	23,864
Due after five through ten years	20,568
Due after ten years	988
Fair Value	96,953
U.S. agency mortgage-backed securities: residential
Amortized Cost
Amortized Cost	24,841
Fair Value
Fair Value	24,748
U.S. agency collateralized mortgage obligations: residential
Amortized Cost
Amortized Cost	25,423
Fair Value
Fair Value	$ 24,786