Securities - Schedule of Debt Security Maturities (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Amortized Cost
Due in one year or less	$ 2,001
Due after one year through five years	20,886
Due after five through ten years	25,702
Due after ten years	1,012
Available-for-sale securities, amortized cost	100,758
Fair Value
Due in one year or less	2,001
Due after one year through five years	20,734
Due after five through ten years	25,327
Due after ten years	976
Available-for-sale securities, fair value	99,370
U.S. agency mortgage-backed securities: residential
Amortized Cost
Without single maturity date	25,790
Fair Value
Without single maturity date	25,626
U.S. agency collateralized mortgage obligations: residential
Amortized Cost
Without single maturity date	25,367
Fair Value
Without single maturity date	$ 24,706