v3.8.0.1
Securities - Scheduled Maturities of Securities AFS Other than Mortgage Backed Securities and the Related Weighted Average Yield (Details)
$ in Thousands
Sep. 30, 2017
USD ($)
Schedule Of Available For Sale Securities [Line Items]  
Weighted average yield, one through five years 1.03%
Weighted average yield, total 1.03%
U.S. Treasury Securities  
Schedule Of Available For Sale Securities [Line Items]  
Amortized cost, one through five years $ 499
Amortized cost, total 499
Estimated fair value, one through five years 495
Estimated fair value, total $ 495