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Securities (Details Textual) - USD ($)
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]    
Securities Held as Collateral, at Fair Value $ 1,500,000 $ 500,000
Unrealized Gain (Loss) on Securities 9,000  
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss 2,300,000 $ 2,200,000
Federal Home Loan Bank Certificates and Obligations (FHLB) [Member]    
Schedule Of Available For Sale Securities And Held To Maturity [Line Items]    
Unrealized Gain (Loss) on Securities $ 64,000