Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Principles - Significant Accounting Principles: Premises and Equipment (Details)

v3.20.4
Summary of Significant Accounting Principles - Significant Accounting Principles: Premises and Equipment (Details)
12 Months Ended
Dec. 31, 2020
USD ($)
Property, Plant and Equipment [Line Items]  
Expected credit losses $ 0
Building  
Property, Plant and Equipment [Line Items]  
Premises and equipment, estimated useful lives 40 years
Furniture and Equipment  
Property, Plant and Equipment [Line Items]  
Premises and equipment, estimated useful lives 12 years