Annual report pursuant to Section 13 and 15(d)

Allowance for Loan and Lease Losses - Summary of Troubled Debt Restructurings (TDRs) Based Upon Delinquency Status (Details)

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Allowance for Loan and Lease Losses - Summary of Troubled Debt Restructurings (TDRs) Based Upon Delinquency Status (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Contract
Dec. 31, 2020
USD ($)
Contract
Dec. 31, 2019
Contract
Financing Receivable Modifications [Line Items]      
Number of contracts | Contract 17 20  
Recorded Investment | $ $ 614 $ 883  
Allowance attributable to TDRs | $ $ 224 $ 421  
Commercial and Industrial Loans      
Financing Receivable Modifications [Line Items]      
Number of contracts | Contract   9 4
Performing TDRs      
Financing Receivable Modifications [Line Items]      
Number of contracts | Contract 4 6  
Recorded Investment | $ $ 155 $ 231  
Performing TDRs | Commercial and Industrial Loans      
Financing Receivable Modifications [Line Items]      
Number of contracts | Contract 2 2  
Recorded Investment | $ $ 32 $ 49  
Performing TDRs | Real Estate | 1-4 Single Family Residential      
Financing Receivable Modifications [Line Items]      
Number of contracts | Contract 2 3  
Recorded Investment | $ $ 123 $ 130  
Performing TDRs | Municipal and Other Loans      
Financing Receivable Modifications [Line Items]      
Number of contracts | Contract   1  
Recorded Investment | $   $ 52  
Nonperforming TDRs      
Financing Receivable Modifications [Line Items]      
Number of contracts | Contract 13 14  
Recorded Investment | $ $ 459 $ 652