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Employee Stock Ownership Plan (Schedule of Shares Held by the ESOP) (Details) - shares
Sep. 30, 2020
Dec. 31, 2019
Share-Based Compensation    
Allocated 282,256 192,499
Committed to be allocated 67,318 89,757
Unallocated 1,189,294 1,256,612
Total 1,538,868 1,538,868