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INVESTMENT SECURITIES (Details 2) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2015
Jan. 31, 2014
Investments, Debt and Equity Securities [Abstract]        
Proceeds from sales $ 17,693us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities $ 2,558us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities $ 33,749us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities $ 3,058us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities
Realized gross gains on sales 515us-gaap_AvailableForSaleSecuritiesGrossRealizedGains 84us-gaap_AvailableForSaleSecuritiesGrossRealizedGains 573us-gaap_AvailableForSaleSecuritiesGrossRealizedGains 84us-gaap_AvailableForSaleSecuritiesGrossRealizedGains
Realized gross losses on sales $ 7us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses $ 99us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses $ 12us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses $ 100us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses