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Derivative and Other Financial Instruments with Off-Balance Sheet Risks: Commitments on Undisbursed Funds Held for Investment Policy (Details) (USD $)
Sep. 30, 2013
Jun. 30, 2012
Other Assets
   
Derivative [Line Items]    
Undisbursed commitments to extend credit, Assets $ 3,400,000 $ 7,400,000
Other Liabilities [Member]
   
Derivative [Line Items]    
Undisbursed commitments to extend credit, Liabilities $ 4,400,000 $ 1,000,000