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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2021
Summary of Significant Accounting Policies [Abstract]  
Premises and Equipment
Premises and equipment — Land is carried at cost. Premises and equipment are carried at cost, net of accumulated depreciation and amortization. Depreciation and amortization expense is computed using the straight-line method based on the estimated useful lives of the related assets below:

Building and building improvements
30 to 40 years
Leasehold improvements
term of lease
Furniture and equipment
3 to 7 years
Computers, software and equipment
3 to 7 years