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Employee Stock Ownership Plan (Schedule of ESOP Shares) (Details) - Employee Stock Ownership Plan [Member] - USD ($)
Jun. 30, 2018
Jun. 30, 2017
ESOP share allocation    
Allocated shares 459,032 456,099
Unreleased shares 29,166 45,000
Total shares held by the ESOP 488,198 501,099
Fair value of unreleased shares $ 782,524 $ 1,008,900