Fair Value Measurements - Assets measured at fair value on recurring basis (Details) (USD $) | Jun. 30, 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 | $104,985 | $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 | 104,985 | 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 | 25,006 | 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 | 20,099 | 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 | 2,500 | 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 | 874 | 810 |
Corporate debt securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 1,533 | 1,782 |
Mortgage Backed Securities | ' | ' |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ' | ' |
Available-for-sale securities, fair value | 79,979 | 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 | 427 | 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 | 17,536 | 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 | 3,729 | 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 | 12,399 | 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 | 45,888 | 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 | 104,985 | 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 | 104,985 | 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 | 25,006 | 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 | 25,006 | 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 | 20,099 | 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 | 20,099 | 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 | 2,500 | 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 | 2,500 | 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 | 874 | 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 | 874 | 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 | 1,533 | 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 | 1,533 | 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 | 79,979 | 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 | 79,979 | 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 | 427 | 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 | 427 | 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 | 17,536 | 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 | 17,536 | 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 | 3,729 | 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 | 3,729 | 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 | 12,399 | 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 | 12,399 | 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 | 45,888 | 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 | 45,888 | 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 | ' | ' |