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Securities - Scheduled Maturities of Securities AFS Other than Mortgage Backed Securities and the Related Weighted Average Yield (Details)
$ in Thousands
Sep. 30, 2015
USD ($)
Schedule Of Available For Sale Securities [Line Items]  
Amortized cost, less than one year $ 300
Amortized cost, one through five years 12,760
Amortized cost, five through ten years 2,748
Amortized cost, after ten years 659
Amortized cost, total $ 16,467
Weighted average yield, less than one year 0.45%
Weighted average yield, one through five years 1.50%
Weighted average yield, five through ten years 1.94%
Weighted average yield, after ten years 2.86%
Weighted average yield, total 1.61%
Estimated fair value, less than one year $ 300
Estimated fair value, one through five years 12,798
Estimated fair value, five through ten years 2,763
Estimated fair value, after ten years 675
Estimated fair value, total 16,536
U.S. Treasury Securities  
Schedule Of Available For Sale Securities [Line Items]  
Amortized cost, less than one year 300
Amortized cost, total 300
Estimated fair value, less than one year 300
Estimated fair value, total 300
FNMA and FHLB Agency Notes  
Schedule Of Available For Sale Securities [Line Items]  
Amortized cost, one through five years 12,760
Amortized cost, five through ten years 2,748
Amortized cost, after ten years 659
Amortized cost, total 16,167
Estimated fair value, one through five years 12,798
Estimated fair value, five through ten years 2,763
Estimated fair value, after ten years 675
Estimated fair value, total $ 16,236