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Loans (Commercial Loan Portfolio Categorized by Internally Assigned Asset Classification) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Commercial Business [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | $ 111,722 | $ 351,185
Prior Fiscal Year 1 | 109,525 | 113,040
Prior Fiscal Year 2 | 78,618 | 83,233
Prior Fiscal Year 3 | 50,556 | 33,163
Prior Fiscal Year 4 | 17,345 | 8,438
Prior | 15,223 | 17,934
Revolving Loans Amortized Cost Basis | 303,202 | 187,155
Revolving Loans Converted to Term | 0 | 0
Total | 686,191 | 794,148
Commercial Business [Member] | Uncriticized [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 111,558 | 350,992
Prior Fiscal Year 1 | 109,269 | 112,469
Prior Fiscal Year 2 | 78,305 | 82,029
Prior Fiscal Year 3 | 49,811 | 31,990
Prior Fiscal Year 4 | 16,289 | 8,195
Prior | 13,906 | 16,600
Revolving Loans Amortized Cost Basis | 296,861 | 179,770
Revolving Loans Converted to Term | 0 | 0
Total | 675,999 | 782,045
Commercial Business [Member] | Special Mention [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 164 | 0
Prior Fiscal Year 1 | 41 | 360
Prior Fiscal Year 2 | 153 | 21
Prior Fiscal Year 3 | 23 | 709
Prior Fiscal Year 4 | 360 | 41
Prior | 1,034 | 1,025
Revolving Loans Amortized Cost Basis | 1,745 | 2,995
Revolving Loans Converted to Term | 0 | 0
Total | 3,520 | 5,151
Commercial Business [Member] | Substandard [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 0 | 193
Prior Fiscal Year 1 | 215 | 211
Prior Fiscal Year 2 | 160 | 1,183
Prior Fiscal Year 3 | 722 | 464
Prior Fiscal Year 4 | 696 | 202
Prior | 283 | 309
Revolving Loans Amortized Cost Basis | 4,596 | 4,390
Revolving Loans Converted to Term | 0 | 0
Total | 6,672 | 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 | 220,762 | 324,852
Prior Fiscal Year 1 | 347,406 | 272,232
Prior Fiscal Year 2 | 233,761 | 185,234
Prior Fiscal Year 3 | 164,237 | 190,949
Prior Fiscal Year 4 | 156,752 | 87,174
Prior | 221,896 | 192,487
Revolving Loans Amortized Cost Basis | 3,736 | 973
Revolving Loans Converted to Term | 0 | 0
Total | 1,348,550 | 1,253,901
Commercial Mortgage [Member] | Uncriticized [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 208,019 | 310,364
Prior Fiscal Year 1 | 343,976 | 227,406
Prior Fiscal Year 2 | 181,132 | 163,839
Prior Fiscal Year 3 | 143,005 | 161,771
Prior Fiscal Year 4 | 142,828 | 74,915
Prior | 172,277 | 154,399
Revolving Loans Amortized Cost Basis | 3,736 | 731
Revolving Loans Converted to Term | 0 | 0
Total | 1,194,973 | 1,093,425
Commercial Mortgage [Member] | Special Mention [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 11,742 | 14,299
Prior Fiscal Year 1 | 3,041 | 42,305
Prior Fiscal Year 2 | 49,691 | 19,505
Prior Fiscal Year 3 | 9,622 | 27,530
Prior Fiscal Year 4 | 13,624 | 12,256
Prior | 39,755 | 28,744
Revolving Loans Amortized Cost Basis | 0 | 43
Revolving Loans Converted to Term | 0 | 0
Total | 127,475 | 144,682
Commercial Mortgage [Member] | Substandard [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 1,001 | 189
Prior Fiscal Year 1 | 389 | 2,521
Prior Fiscal Year 2 | 2,938 | 1,890
Prior Fiscal Year 3 | 11,610 | 1,648
Prior Fiscal Year 4 | 300 | 3
Prior | 9,864 | 9,344
Revolving Loans Amortized Cost Basis | 0 | 199
Revolving Loans Converted to Term | 0 | 0
Total | 26,102 | 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

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