Fair Value Measurements - Assets measured at fair value on recurring basis (Details) (USD $) | Mar. 31, 2014 | Sep. 30, 2013 |
In Thousands, unless otherwise specified |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | $122,208 | $124,667 |
Level 1 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 122,208 | 124,667 |
Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |
Total investment securities available for sale | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 33,530 | 33,962 |
U.S. government agencies | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 19,926 | 19,432 |
State and municipal obligations | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 11,239 | 11,938 |
Single issuer trust preferred security | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 835 | 810 |
Corporate debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 1,530 | 1,782 |
Mortgage Backed Securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 88,678 | 90,705 |
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 | 1,812 | 2,014 |
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 | 17,454 | 18,091 |
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 | 5,762 | 5,021 |
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 | 12,418 | 12,850 |
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 | 51,232 | 52,729 |
Fair Value, Measurements, Recurring | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 122,208 | 124,667 |
Fair Value, Measurements, Recurring | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 122,208 | 124,667 |
Fair Value, Measurements, Recurring | 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 investment securities available for sale | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 33,530 | 33,962 |
Fair Value, Measurements, Recurring | Total investment securities available for sale | 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 investment securities available for sale | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 33,530 | 33,962 |
Fair Value, Measurements, Recurring | Total investment securities available for sale | 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 | 19,926 | 19,432 |
Fair Value, Measurements, Recurring | U.S. government agencies | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 19,926 | 19,432 |
Fair Value, Measurements, Recurring | U.S. government agencies | 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 | 11,239 | 11,938 |
Fair Value, Measurements, Recurring | State and municipal obligations | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 11,239 | 11,938 |
Fair Value, Measurements, Recurring | State and municipal obligations | 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 | 835 | 810 |
Fair Value, Measurements, Recurring | Single issuer trust preferred security | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 835 | 810 |
Fair Value, Measurements, Recurring | Single issuer trust preferred security | 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 | 1,530 | 1,782 |
Fair Value, Measurements, Recurring | Corporate debt securities | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 1,530 | 1,782 |
Fair Value, Measurements, Recurring | Corporate debt securities | 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 | 88,678 | 90,705 |
Fair Value, Measurements, Recurring | Mortgage Backed Securities | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 88,678 | 90,705 |
Fair Value, Measurements, Recurring | Mortgage Backed Securities | 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 | 1,812 | 2,014 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Adjustable-rate | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 1,812 | 2,014 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Adjustable-rate | 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 | 17,454 | 18,091 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Fixed-rate | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 17,454 | 18,091 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FNMA | Fixed-rate | 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 | 5,762 | 5,021 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Adjustable-rate | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 5,762 | 5,021 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Adjustable-rate | 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 | 12,418 | 12,850 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Fixed-rate | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 12,418 | 12,850 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: FHLMC | Fixed-rate | 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 | 51,232 | 52,729 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: CMO, fixed-rate | Fixed-rate | 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 | Level 2 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 51,232 | 52,729 |
Fair Value, Measurements, Recurring | Mortgage-backed securities: CMO, fixed-rate | Fixed-rate | Level 3 | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | ' | ' |