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Loans (Commercial Loan Portfolio Categorized by Internally Assigned Asset Classification) (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Commercial Business [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year $ 7,394 $ 120,176
Prior Fiscal Year 1 115,555 129,680
Prior Fiscal Year 2 101,872 79,560
Prior Fiscal Year 3 78,047 49,531
Prior Fiscal Year 4 39,542 22,099
Prior 76,033 65,933
Revolving Loans Amortized Cost Basis 289,121 268,721
Revolving Loans Converted to Term 0 0
Total 707,564 735,700
Commercial Business [Member] | Uncriticized [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 7,337 111,035
Prior Fiscal Year 1 107,289 124,572
Prior Fiscal Year 2 96,821 77,079
Prior Fiscal Year 3 75,632 49,531
Prior Fiscal Year 4 39,515 21,971
Prior 74,444 64,648
Revolving Loans Amortized Cost Basis 277,930 257,585
Revolving Loans Converted to Term 0 0
Total 678,968 706,421
Commercial Business [Member] | Special Mention [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 7,532
Prior Fiscal Year 1 7,023 0
Prior Fiscal Year 2 0 2,400
Prior Fiscal Year 3 2,310 0
Prior Fiscal Year 4 0 114
Prior 950 0
Revolving Loans Amortized Cost Basis 2,379 2,442
Revolving Loans Converted to Term 0 0
Total 12,662 12,488
Commercial Business [Member] | Substandard [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 57 1,609
Prior Fiscal Year 1 1,243 11
Prior Fiscal Year 2 10 81
Prior Fiscal Year 3 105 0
Prior Fiscal Year 4 27 0
Prior 6 888
Revolving Loans Amortized Cost Basis 8,570 8,532
Revolving Loans Converted to Term 0 0
Total 10,018 11,121
Commercial Business [Member] | Doubtful [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 0
Prior Fiscal Year 1 0 5,097
Prior Fiscal Year 2 5,041 0
Prior Fiscal Year 3 0 0
Prior Fiscal Year 4 0 14
Prior 633 397
Revolving Loans Amortized Cost Basis 242 162
Revolving Loans Converted to Term 0 0
Total 5,916 5,670
Commercial Business [Member] | Current Period Gross Write-offs [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 0
Prior Fiscal Year 1 0 5
Prior Fiscal Year 2 0 3
Prior Fiscal Year 3 0 31
Prior Fiscal Year 4 0 8
Prior 17 235
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term 0 0
Total 17 282
Commercial Mortgage [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 25,656 351,767
Prior Fiscal Year 1 366,029 604,518
Prior Fiscal Year 2 634,899 350,362
Prior Fiscal Year 3 339,131 219,127
Prior Fiscal Year 4 217,388 151,208
Prior 461,953 328,337
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term 0 0
Total 2,045,056 2,005,319
Commercial Mortgage [Member] | Uncriticized [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 25,656 350,370
Prior Fiscal Year 1 364,635 603,686
Prior Fiscal Year 2 629,850 328,916
Prior Fiscal Year 3 317,407 209,213
Prior Fiscal Year 4 209,655 151,022
Prior 429,008 294,703
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term 0 0
Total 1,976,211 1,937,910
Commercial Mortgage [Member] | Special Mention [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 0
Prior Fiscal Year 1 0 494
Prior Fiscal Year 2 4,716 17,136
Prior Fiscal Year 3 17,414 8,982
Prior Fiscal Year 4 6,825 119
Prior 17,417 11,355
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term 0 0
Total 46,372 38,086
Commercial Mortgage [Member] | Substandard [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 0
Prior Fiscal Year 1 0 338
Prior Fiscal Year 2 0 212
Prior Fiscal Year 3 212 918
Prior Fiscal Year 4 895 0
Prior 10,541 17,291
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term 0 0
Total 11,648 18,759
Commercial Mortgage [Member] | Doubtful [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 1,397
Prior Fiscal Year 1 1,394 0
Prior Fiscal Year 2 333 4,098
Prior Fiscal Year 3 4,098 14
Prior Fiscal Year 4 13 67
Prior 4,987 4,988
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term 0 0
Total 10,825 $ 10,564
Commercial Mortgage [Member] | Current Period Gross Write-offs [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0  
Prior Fiscal Year 1 0  
Prior Fiscal Year 2 0  
Prior Fiscal Year 3 0  
Prior Fiscal Year 4 0  
Prior 0  
Revolving Loans Amortized Cost Basis 0  
Revolving Loans Converted to Term 0  
Total $ 0