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Investment Securities (Narrative) (Details) - security
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]    
Number of securities in unrealized loss position 213 30
Number of securities in unrealized loss position, more than 12 months 26  
Agency - GSE [Member]    
Debt Securities, Available-for-sale [Line Items]    
Number of securities in unrealized loss position 44  
Agency - GSE [Member] | Measurement Input, Loss Severity [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale, measurement input 2.29%  
MBS - GSE Residential [Member]    
Debt Securities, Available-for-sale [Line Items]    
Number of securities in unrealized loss position 61  
MBS - GSE Residential [Member] | Measurement Input, Loss Severity [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale, measurement input 1.46%  
Obligations of States and Political Subdivisions [Member]    
Debt Securities, Available-for-sale [Line Items]    
Number of securities in unrealized loss position 108  
Obligations of States and Political Subdivisions [Member] | Measurement Input, Loss Severity [Member]    
Debt Securities, Available-for-sale [Line Items]    
Available-for-sale, measurement input 1.79%