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Employee Stock Ownership Plan (Schedule of ESOP shares) (Details) - Employee Stock Ownership Plan [Member] - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]    
Allocated shares 423,568 441,531
Committed-to-be-released shares 8,750 9,167
Unreleased shares 70,417 88,333
Total shares held by the ESOP 502,735 539,031
Fair value of unreleased shares $ 1,813,238 $ 2,102,325