Fair Value Measurements - Assets measured at fair value on recurring basis (Details) (USD $) | Sep. 30, 2013 | Sep. 30, 2012 |
In Thousands, unless otherwise specified |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | $124,667 | $80,508 |
Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 124,667 | 80,508 |
Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Total Available For Sale Securities Before Mortgage-Backed | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 33,962 | 36,825 |
U.S. government agencies | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 19,432 | 23,921 |
FHLB notes | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | 696 |
State and municipal obligations | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 11,938 | 9,387 |
Single issuer trust preferred security | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 810 | 764 |
Corporate debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 1,782 | 2,057 |
Mortgage Backed Securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 90,705 | 43,683 |
Mortgage-backed securities: FNMA | Adjustable-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 2,014 | 1,215 |
Mortgage-backed securities: FNMA | Fixed-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 18,091 | 710 |
Mortgage-backed securities: FHLMC | Adjustable-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 5,021 | 261 |
Mortgage-backed securities: FHLMC | Fixed-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 12,850 | ' |
Mortgage-backed securities: GNMA, adjustable-rate | Adjustable-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | 1 |
Mortgage-backed securities: CMO, fixed-rate | Fixed-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 52,729 | 41,496 |
Fair Value, Measurements, Recurring | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 124,667 | 80,508 |
Fair Value, Measurements, Recurring | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 124,667 | 80,508 |
Fair Value, Measurements, Recurring | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Total Available For Sale Securities Before Mortgage-Backed | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 33,962 | 36,825 |
Fair Value, Measurements, Recurring | Total Available For Sale Securities Before Mortgage-Backed | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Total Available For Sale Securities Before Mortgage-Backed | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 33,962 | 36,825 |
Fair Value, Measurements, Recurring | Total Available For Sale Securities Before Mortgage-Backed | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | U.S. government agencies | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 19,432 | 23,921 |
Fair Value, Measurements, Recurring | U.S. government agencies | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | U.S. government agencies | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 19,432 | 23,921 |
Fair Value, Measurements, Recurring | U.S. government agencies | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | FHLB notes | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | 696 |
Fair Value, Measurements, Recurring | FHLB notes | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | FHLB notes | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | 696 |
Fair Value, Measurements, Recurring | FHLB notes | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | State and municipal obligations | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 11,938 | 9,387 |
Fair Value, Measurements, Recurring | State and municipal obligations | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | State and municipal obligations | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 11,938 | 9,387 |
Fair Value, Measurements, Recurring | State and municipal obligations | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Single issuer trust preferred security | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 810 | 764 |
Fair Value, Measurements, Recurring | Single issuer trust preferred security | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Single issuer trust preferred security | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 810 | 764 |
Fair Value, Measurements, Recurring | Single issuer trust preferred security | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Corporate debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 1,782 | 2,057 |
Fair Value, Measurements, Recurring | Corporate debt securities | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Corporate debt securities | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 1,782 | 2,057 |
Fair Value, Measurements, Recurring | Corporate debt securities | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage Backed Securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 90,705 | 43,683 |
Fair Value, Measurements, Recurring | Mortgage Backed Securities | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage Backed Securities | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 90,705 | 43,683 |
Fair Value, Measurements, Recurring | Mortgage Backed Securities | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Adjustable-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 2,014 | 1,215 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Adjustable-rate | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Adjustable-rate | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 2,014 | 1,215 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Adjustable-rate | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Fixed-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 18,091 | 710 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Fixed-rate | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Fixed-rate | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 18,091 | 710 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Fixed-rate | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Adjustable-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 5,021 | 261 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Adjustable-rate | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Adjustable-rate | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 5,021 | 261 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Adjustable-rate | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Fixed-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 12,850 | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Fixed-rate | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Fixed-rate | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 12,850 | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Fixed-rate | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: GNMA, adjustable-rate | Adjustable-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | 1 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: GNMA, adjustable-rate | Adjustable-rate | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: GNMA, adjustable-rate | Adjustable-rate | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | 1 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: GNMA, adjustable-rate | Adjustable-rate | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: CMO, fixed-rate | Fixed-rate | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 52,729 | 41,496 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: CMO, fixed-rate | Fixed-rate | Fair Value Inputs Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Fair Value, Measurements, Recurring | Mortgage-backed securities: CMO, fixed-rate | Fixed-rate | Fair Value Inputs Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 52,729 | 41,496 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: CMO, fixed-rate | Fixed-rate | Fair Value Inputs Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |