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Loans (Commercial Loan Portfolio Categorized by Internally Assigned Asset Classification) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Dec. 31, 2020
Commercial Business [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year $ 65,134 $ 351,185
Prior Fiscal Year 1 175,543 113,040
Prior Fiscal Year 2 97,494 83,233
Prior Fiscal Year 3 61,814 33,163
Prior Fiscal Year 4 20,239 8,438
Prior 22,673 17,934
Revolving Loans Amortized Cost Basis 288,311 187,155
Revolving Loans Converted to Term 0 0
Total 731,208 794,148
Commercial Business [Member] | Uncriticized [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 65,107 350,992
Prior Fiscal Year 1 175,374 112,469
Prior Fiscal Year 2 97,307 82,029
Prior Fiscal Year 3 60,740 31,990
Prior Fiscal Year 4 20,000 8,195
Prior 21,457 16,600
Revolving Loans Amortized Cost Basis 281,613 179,770
Revolving Loans Converted to Term 0 0
Total 721,598 782,045
Commercial Business [Member] | Special Mention [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 27 0
Prior Fiscal Year 1 104 360
Prior Fiscal Year 2 14 21
Prior Fiscal Year 3 129 709
Prior Fiscal Year 4 26 41
Prior 1,083 1,025
Revolving Loans Amortized Cost Basis 2,974 2,995
Revolving Loans Converted to Term 0 0
Total 4,357 5,151
Commercial Business [Member] | Substandard [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 193
Prior Fiscal Year 1 65 211
Prior Fiscal Year 2 173 1,183
Prior Fiscal Year 3 945 464
Prior Fiscal Year 4 213 202
Prior 133 309
Revolving Loans Amortized Cost Basis 3,724 4,390
Revolving Loans Converted to Term 0 0
Total 5,253 6,952
Commercial Business [Member] | Doubtful [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 0
Prior Fiscal Year 1 0 0
Prior Fiscal Year 2 0 0
Prior Fiscal Year 3 0 0
Prior Fiscal Year 4 0 0
Prior 0 0
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term 0 0
Total 0 0
Commercial Mortgage [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 137,566 324,852
Prior Fiscal Year 1 357,267 272,232
Prior Fiscal Year 2 249,519 185,234
Prior Fiscal Year 3 167,080 190,949
Prior Fiscal Year 4 172,621 87,174
Prior 231,186 192,487
Revolving Loans Amortized Cost Basis 165 973
Revolving Loans Converted to Term 0 0
Total 1,315,404 1,253,901
Commercial Mortgage [Member] | Uncriticized [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 137,070 310,364
Prior Fiscal Year 1 340,304 227,406
Prior Fiscal Year 2 196,386 163,839
Prior Fiscal Year 3 145,712 161,771
Prior Fiscal Year 4 145,919 74,915
Prior 181,455 154,399
Revolving Loans Amortized Cost Basis 165 731
Revolving Loans Converted to Term 0 0
Total 1,147,011 1,093,425
Commercial Mortgage [Member] | Special Mention [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 496 14,299
Prior Fiscal Year 1 16,636 42,305
Prior Fiscal Year 2 50,195 19,505
Prior Fiscal Year 3 9,635 27,530
Prior Fiscal Year 4 25,426 12,256
Prior 39,954 28,744
Revolving Loans Amortized Cost Basis 0 43
Revolving Loans Converted to Term 0 0
Total 142,342 144,682
Commercial Mortgage [Member] | Substandard [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 189
Prior Fiscal Year 1 327 2,521
Prior Fiscal Year 2 2,938 1,890
Prior Fiscal Year 3 11,733 1,648
Prior Fiscal Year 4 1,276 3
Prior 9,777 9,344
Revolving Loans Amortized Cost Basis 0 199
Revolving Loans Converted to Term 0 0
Total 26,051 15,794
Commercial Mortgage [Member] | Doubtful [Member]    
Financing Receivable Recorded Investment [Line Items]    
Current Fiscal Year 0 0
Prior Fiscal Year 1 0 0
Prior Fiscal Year 2 0 0
Prior Fiscal Year 3 0 0
Prior Fiscal Year 4 0 0
Prior 0 0
Revolving Loans Amortized Cost Basis 0 0
Revolving Loans Converted to Term 0 0
Total $ 0 $ 0