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Loans, Troubled Debt Restructurings Segregated by Class (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 USD ($) Loan | Sep. 30, 2020 USD ($) Loan | Sep. 30, 2021 USD ($) Loan | Sep. 30, 2020 USD ($) Loan | Dec. 31, 2020 USD ($) Loan
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Number of Loans | Loan | 7 | 6 | 14 | 40 | 47
Pre-Modification Outstanding Recorded Investment | $ 5,016 | $ 4,857 | $ 7,815 | $ 16,070 | $ 17,879
Post-Modification Outstanding Balance | 5,113 | $ 4,914 | 7,853 | $ 16,042 | 17,850
Commitment to extend additional credit on loans modified in TDRs | $ 136 |  | $ 136 |  | 85
Defaulted restructured loans, number of loans | Loan | 0 | 0 | 2 | 3 |
Defaulted restructured loans, recorded balance |  |  | $ 1,388 | $ 368 |
Term Modification [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | $ 2,448 | $ 4,857 | 4,827 | 13,726 | 15,235
Post-Modification Outstanding Balance | 2,551 | 4,914 | 4,853 | 13,698 | 15,208
Combination [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 2,568 | 0 | 2,988 | 2,344 | 2,644
Post-Modification Outstanding Balance | $ 2,562 | $ 0 | $ 3,000 | $ 2,344 | $ 2,642
Commercial [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Number of Loans | Loan | 7 | 5 | 14 | 37 | 43
Pre-Modification Outstanding Recorded Investment | $ 5,016 | $ 4,574 | $ 7,815 | $ 14,854 | $ 16,383
Post-Modification Outstanding Balance | 5,113 | 4,632 | 7,853 | 14,839 | 16,371
Commercial [Member] | Term Modification [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 2,448 | 4,574 | 4,827 | 12,510 | 13,739
Post-Modification Outstanding Balance | 2,551 | 4,632 | 4,853 | 12,495 | 13,729
Commercial [Member] | Combination [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 2,568 | 0 | 2,988 | 2,344 | 2,644
Post-Modification Outstanding Balance | $ 2,562 | $ 0 | $ 3,000 | $ 2,344 | $ 2,642
Commercial [Member] | Hotel/Motel [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Number of Loans | Loan | 0 |  | 0 |  | 1
Pre-Modification Outstanding Recorded Investment | $ 0 |  | $ 0 |  | $ 1,113
Post-Modification Outstanding Balance | 0 |  | $ 0 |  | 1,113
Defaulted restructured loans, number of loans | Loan |  |  | 1 | 0 |
Defaulted restructured loans, recorded balance |  |  | $ 1,113 | $ 0 |
Commercial [Member] | Hotel/Motel [Member] | Term Modification [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 0 |  | 0 |  | 1,113
Post-Modification Outstanding Balance | 0 |  | 0 |  | 1,113
Commercial [Member] | Hotel/Motel [Member] | Combination [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 0 |  | 0 |  | 0
Post-Modification Outstanding Balance | $ 0 |  | $ 0 |  | $ 0
Commercial [Member] | Commercial Real Estate Residential [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Number of Loans | Loan | 2 | 1 | 2 | 12 | 12
Pre-Modification Outstanding Recorded Investment | $ 255 | $ 101 | $ 255 | $ 6,503 | $ 6,503
Post-Modification Outstanding Balance | 254 | 101 | 254 | 6,505 | 6,505
Commercial [Member] | Commercial Real Estate Residential [Member] | Term Modification [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 255 | 101 | 255 | 4,694 | 4,694
Post-Modification Outstanding Balance | 254 | 101 | 254 | 4,696 | 4,696
Commercial [Member] | Commercial Real Estate Residential [Member] | Combination [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 0 | 0 | 1,809 | 1,809
Post-Modification Outstanding Balance | $ 0 | $ 0 | $ 0 | $ 1,809 | $ 1,809
Commercial [Member] | Commercial Real Estate Nonresidential [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Number of Loans | Loan | 4 | 3 | 9 | 15 | 18
Pre-Modification Outstanding Recorded Investment | $ 4,666 | $ 4,421 | $ 7,167 | $ 7,695 | $ 8,077
Post-Modification Outstanding Balance | 4,758 | 4,479 | 7,282 | 7,744 | 8,131
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Term Modification [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 2,098 | 4,421 | 4,179 | 7,185 | 7,295
Post-Modification Outstanding Balance | 2,196 | 4,479 | 4,282 | 7,234 | 7,349
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Combination [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 2,568 | 0 | 2,988 | 510 | 782
Post-Modification Outstanding Balance | $ 2,562 | $ 0 | $ 3,000 | $ 510 | $ 782
Commercial [Member] | Commercial Other [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Number of Loans | Loan | 1 | 1 | 3 | 10 | 12
Pre-Modification Outstanding Recorded Investment | $ 95 | $ 52 | $ 393 | $ 656 | $ 690
Post-Modification Outstanding Balance | 101 | 52 | $ 317 | $ 590 | 622
Defaulted restructured loans, number of loans | Loan |  |  | 0 | 3 |
Defaulted restructured loans, recorded balance |  |  | $ 0 | $ 368 |
Commercial [Member] | Commercial Other [Member] | Term Modification [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 95 | 52 | 393 | 631 | 637
Post-Modification Outstanding Balance | 101 | 52 | 317 | 565 | 571
Commercial [Member] | Commercial Other [Member] | Combination [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 0 | 0 | 25 | 53
Post-Modification Outstanding Balance | $ 0 | $ 0 | $ 0 | $ 25 | $ 51
Residential [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Number of Loans | Loan |  | 1 |  | 3 | 4
Pre-Modification Outstanding Recorded Investment |  | $ 283 |  | $ 1,216 | $ 1,496
Post-Modification Outstanding Balance |  | 282 |  | 1,203 | 1,479
Residential [Member] | Term Modification [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment |  | 283 |  | 1,216 | 1,496
Post-Modification Outstanding Balance |  | 282 |  | 1,203 | 1,479
Residential [Member] | Combination [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0 | 0
Post-Modification Outstanding Balance |  | $ 0 |  | $ 0 | $ 0
Residential [Member] | Real Estate Mortgage [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Number of Loans | Loan |  | 1 |  | 3 | 4
Pre-Modification Outstanding Recorded Investment |  | $ 283 |  | $ 1,216 | $ 1,496
Post-Modification Outstanding Balance |  | 282 |  | $ 1,203 | 1,479
Defaulted restructured loans, number of loans | Loan |  |  | 1 | 0 |
Defaulted restructured loans, recorded balance |  |  | $ 275 | $ 0 |
Residential [Member] | Real Estate Mortgage [Member] | Term Modification [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment |  | 283 |  | 1,216 | 1,496
Post-Modification Outstanding Balance |  | 282 |  | 1,203 | 1,479
Residential [Member] | Real Estate Mortgage [Member] | Combination [Member] |  |  |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |  |  |
Pre-Modification Outstanding Recorded Investment |  | 0 |  | 0 | 0
Post-Modification Outstanding Balance |  | $ 0 |  | $ 0 | $ 0

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