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Employee Benefits - Summary of ESOP shares (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]    
Allocated shares 57,420 54,519
Shares committed for allocation 3,820 3,767
Unearned shares 21,171 24,991
Total ESOP shares 82,411 83,277
Fair value of unearned shares at December 31 $ 556,374 $ 574,793