Fair Value Measurements (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Sep. 30, 2014 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | $ 130,509 | $ 100,943 |
U S Government Agencies Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 805 | 19,256 |
U S States And Political Subdivisions [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 40,070 | 2,500 |
Single Issuer Trust Preferred Security [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 850 | 880 |
Corporate Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 73,969 | 1,525 |
Available For Sale Securities Before Mortgage Backed [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 115,694 | 24,161 |
Mortgage Backed Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 14,815 | 76,782 |
Fixed Rate [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 8,807 | 16,808 |
Fixed Rate [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | $ 6,008 | 11,996 |
Fixed Rate [Member] | Collateralized Mortgage Obligations [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | 43,965 |
Adjustable Rate Loans [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | 418 |
Adjustable Rate Loans [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | $ 3,595 |
Fair Value, Inputs, Level 1 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Inputs, Level 2 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | $ 130,509 | $ 100,943 |
Fair Value, Inputs, Level 3 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | $ 130,509 | $ 100,943 |
Fair Value, Measurements, Recurring [Member] | U S Government Agencies Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 805 | 19,256 |
Fair Value, Measurements, Recurring [Member] | U S States And Political Subdivisions [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 40,070 | 2,500 |
Fair Value, Measurements, Recurring [Member] | Single Issuer Trust Preferred Security [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 850 | 880 |
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 73,969 | 1,525 |
Fair Value, Measurements, Recurring [Member] | Available For Sale Securities Before Mortgage Backed [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 115,694 | 24,161 |
Fair Value, Measurements, Recurring [Member] | Mortgage Backed Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 14,815 | 76,782 |
Fair Value, Measurements, Recurring [Member] | Fixed Rate [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 8,807 | 16,808 |
Fair Value, Measurements, Recurring [Member] | Fixed Rate [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | $ 6,008 | 11,996 |
Fair Value, Measurements, Recurring [Member] | Fixed Rate [Member] | Collateralized Mortgage Obligations [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | 43,965 |
Fair Value, Measurements, Recurring [Member] | Adjustable Rate Loans [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | 418 |
Fair Value, Measurements, Recurring [Member] | Adjustable Rate Loans [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | $ 3,595 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U S Government Agencies Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | U S States And Political Subdivisions [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Single Issuer Trust Preferred Security [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Available For Sale Securities Before Mortgage Backed [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Mortgage Backed Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Fixed Rate [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Fixed Rate [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Fixed Rate [Member] | Collateralized Mortgage Obligations [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Adjustable Rate Loans [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Adjustable Rate Loans [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | $ 130,509 | $ 100,943 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U S Government Agencies Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 805 | 19,256 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | U S States And Political Subdivisions [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 40,070 | 2,500 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Single Issuer Trust Preferred Security [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 850 | 880 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 73,969 | 1,525 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Available For Sale Securities Before Mortgage Backed [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 115,694 | 24,161 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 14,815 | 76,782 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Fixed Rate [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | 8,807 | 16,808 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Fixed Rate [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | $ 6,008 | 11,996 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Fixed Rate [Member] | Collateralized Mortgage Obligations [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | 43,965 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Adjustable Rate Loans [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | 418 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Adjustable Rate Loans [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | $ 3,595 |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U S Government Agencies Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | U S States And Political Subdivisions [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Single Issuer Trust Preferred Security [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Available For Sale Securities Before Mortgage Backed [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Mortgage Backed Securities [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Rate [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Rate [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Rate [Member] | Collateralized Mortgage Obligations [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Adjustable Rate Loans [Member] | Federal National Mortgage Association Certificates And Obligations F N M A [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Adjustable Rate Loans [Member] | Federal Home Loan Mortgage Corporation Certificates And Obligations F H L M C [Member] | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | |
Investment securities available-for-sale, at fair value | | |