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CDI (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2005
branch
Finite-Lived Intangible Assets [Line Items]        
Number of branches 22      
Amortization of CDI $ 116 $ 130 $ 148  
Core deposits
       
Finite-Lived Intangible Assets [Line Items]        
CDI acquired, gross       2,201
Number of branches       7
Unamortized CDI, net 3 119    
Amortization of CDI $ 116 $ 130 $ 148