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MBS And Other Investments: Narrative-Realized Gains (Losses) (Details) (USD $)
3 Months Ended
Dec. 31, 2013
security
Dec. 31, 2012
security
Sep. 30, 2013
Investments [Abstract]      
Gain on sale of securities $ 0 $ 20,000  
Loss on sale of securities 40,000 232,000  
Held-to-maturity securities, realized loss, number of securities 14 16  
Available-for-sale securities, realized loss, number of securities 6 6  
Security owned and pledged as collateral $ 4,150,000   $ 4,540,000