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Employee Benefits (Schedule of employee stock ownership plan) (Details) - shares
Mar. 31, 2022
Dec. 31, 2021
Employee Benefits    
Allocated 65,463 43,642
Committed to be allocated 5,454 21,821
Unallocated 365,508 370,962
Paid out to participants (1,252) (1,252)
Total shares 435,173 435,173