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Loans (Retail Loan Portfolio Categorized by Performance Status) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Residential Real Estate Loans [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | $ 72,522 | $ 137,926
Prior Fiscal Year 1 | 132,899 | 104,122
Prior Fiscal Year 2 | 89,976 | 87,918
Prior Fiscal Year 3 | 71,863 | 67,111
Prior Fiscal Year 4 | 55,421 | 67,706
Prior | 161,410 | 135,017
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 584,091 | 599,800
Residential Real Estate Loans [Member] | Performing [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 72,522 | 137,926
Prior Fiscal Year 1 | 132,594 | 103,923
Prior Fiscal Year 2 | 89,736 | 87,153
Prior Fiscal Year 3 | 71,263 | 66,446
Prior Fiscal Year 4 | 54,733 | 67,473
Prior | 160,786 | 134,292
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 581,634 | 597,213
Residential Real Estate Loans [Member] | Non-Performing [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 0 | 0
Prior Fiscal Year 1 | 305 | 199
Prior Fiscal Year 2 | 240 | 765
Prior Fiscal Year 3 | 600 | 665
Prior Fiscal Year 4 | 688 | 233
Prior | 624 | 725
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 2,457 | 2,587
Residential Real Estate Lines [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 | 70,959 | 79,322
Revolving Loans Converted to Term | 8,237 | 10,483
Total | 79,196 | 89,805
Residential Real Estate Lines [Member] | Performing [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 | 70,898 | 79,257
Revolving Loans Converted to Term | 8,106 | 10,225
Total | 79,004 | 89,482
Residential Real Estate Lines [Member] | Non-Performing [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 | 61 | 65
Revolving Loans Converted to Term | 131 | 258
Total | 192 | 323
Consumer Indirect [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 370,907 | 295,286
Prior Fiscal Year 1 | 230,874 | 202,839
Prior Fiscal Year 2 | 140,540 | 167,092
Prior Fiscal Year 3 | 106,879 | 111,295
Prior Fiscal Year 4 | 63,514 | 47,925
Prior | 27,823 | 15,984
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 940,537 | 840,421
Consumer Indirect [Member] | Performing [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 370,536 | 295,216
Prior Fiscal Year 1 | 230,468 | 202,187
Prior Fiscal Year 2 | 139,884 | 166,773
Prior Fiscal Year 3 | 106,545 | 111,008
Prior Fiscal Year 4 | 63,216 | 47,793
Prior | 27,784 | 15,949
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 938,433 | 838,926
Consumer Indirect [Member] | Non-Performing [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 371 | 70
Prior Fiscal Year 1 | 406 | 652
Prior Fiscal Year 2 | 656 | 319
Prior Fiscal Year 3 | 334 | 287
Prior Fiscal Year 4 | 298 | 132
Prior | 39 | 35
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total | 2,104 | 1,495
Other Consumer [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 4,091 | 6,774
Prior Fiscal Year 1 | 4,273 | 3,177
Prior Fiscal Year 2 | 2,012 | 1,765
Prior Fiscal Year 3 | 964 | 907
Prior Fiscal Year 4 | 376 | 369
Prior | 812 | 508
Revolving Loans Amortized Cost Basis | 2,806 | 3,563
Revolving Loans Converted to Term | 0 | 0
Total | 15,334 | 17,063
Other Consumer [Member] | Performing [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 4,091 | 6,774
Prior Fiscal Year 1 | 4,273 | 3,177
Prior Fiscal Year 2 | 2,010 | 1,765
Prior Fiscal Year 3 | 964 | 907
Prior Fiscal Year 4 | 376 | 369
Prior | 812 | 508
Revolving Loans Amortized Cost Basis | 2,806 | 3,563
Revolving Loans Converted to Term | 0 | 0
Total | 15,332 | 17,063
Other Consumer [Member] | Non-Performing [Member] |  |
Financing Receivable Recorded Investment [Line Items] |  |
Current Fiscal Year | 0 | 0
Prior Fiscal Year 1 | 0 | 0
Prior Fiscal Year 2 | 2 | 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 | $ 2 | $ 0

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