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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income Taxes [Abstract]    
Tax at federal statutory rate 21.00% 21.00%
Tax effect of:    
Tax-exempt income 1.60% 1.00%
State income taxes, net of federal benefit 5.60% 5.50%
Other (0.30%) (0.10%)
Actual income tax expense rate 25.30% 25.60%