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Loans, Troubled Debt Restructurings Segregated by Class (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) Loan | Mar. 31, 2020 USD ($) Loan | Dec. 31, 2020 USD ($) Loan
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Number of Loans | Loan | 1 | 23 | 47
Pre-Modification Outstanding Recorded Investment | $ 284 | $ 7,594 | $ 17,879
Post-Modification Outstanding Balance | 284 | 7,522 | 17,850
Commitment to extend additional credit on loans modified in TDRs | 88 |  | $ 85
Defaulted restructured loans, number of loans | Loan |  |  | 3
Defaulted restructured loans, recorded balance |  |  | $ 368
Term Modification [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 7,594 | 15,235
Post-Modification Outstanding Balance | 0 | $ 7,522 | 15,208
Combination [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 284 |  | 2,644
Post-Modification Outstanding Balance | $ 284 |  | $ 2,642
Commercial [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Number of Loans | Loan | 1 | 22 | 43
Pre-Modification Outstanding Recorded Investment | $ 284 | $ 7,206 | $ 16,383
Post-Modification Outstanding Balance | 284 | 7,134 | 16,371
Commercial [Member] | Term Modification [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 7,206 | 13,739
Post-Modification Outstanding Balance | 0 | $ 7,134 | 13,729
Commercial [Member] | Combination [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 284 |  | 2,644
Post-Modification Outstanding Balance | $ 284 |  | $ 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
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
Post-Modification Outstanding Balance | $ 0 |  | $ 0
Commercial [Member] | Commercial Real Estate Residential [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Number of Loans | Loan | 0 | 8 | 12
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 4,397 | $ 6,503
Post-Modification Outstanding Balance | 0 | 4,399 | 6,505
Commercial [Member] | Commercial Real Estate Residential [Member] | Term Modification [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 4,397 | 4,694
Post-Modification Outstanding Balance | 0 | $ 4,399 | 4,696
Commercial [Member] | Commercial Real Estate Residential [Member] | Combination [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 |  | 1,809
Post-Modification Outstanding Balance | $ 0 |  | $ 1,809
Commercial [Member] | Commercial Real Estate Nonresidential [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Number of Loans | Loan | 1 | 9 | 18
Pre-Modification Outstanding Recorded Investment | $ 284 | $ 2,345 | $ 8,077
Post-Modification Outstanding Balance | 284 | 2,336 | 8,131
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Term Modification [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 2,345 | 7,295
Post-Modification Outstanding Balance | 0 | $ 2,336 | 7,349
Commercial [Member] | Commercial Real Estate Nonresidential [Member] | Combination [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 284 |  | 782
Post-Modification Outstanding Balance | $ 284 |  | $ 782
Commercial [Member] | Commercial Other [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Number of Loans | Loan | 0 | 5 | 12
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 464 | $ 690
Post-Modification Outstanding Balance | 0 | 399 | $ 622
Defaulted restructured loans, number of loans | Loan |  |  | 3
Defaulted restructured loans, recorded balance |  |  | $ 368
Commercial [Member] | Commercial Other [Member] | Term Modification [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 464 | 637
Post-Modification Outstanding Balance | 0 | $ 399 | 571
Commercial [Member] | Commercial Other [Member] | Combination [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 |  | 53
Post-Modification Outstanding Balance | $ 0 |  | $ 51
Residential [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Number of Loans | Loan | 0 | 1 | 4
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 388 | $ 1,496
Post-Modification Outstanding Balance | 0 | 388 | 1,479
Residential [Member] | Term Modification [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 388 | 1,496
Post-Modification Outstanding Balance | 0 | $ 388 | 1,479
Residential [Member] | Combination [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 |  | 0
Post-Modification Outstanding Balance | $ 0 |  | $ 0
Residential [Member] | Real Estate Mortgage [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Number of Loans | Loan | 0 | 1 | 4
Pre-Modification Outstanding Recorded Investment | $ 0 | $ 388 | $ 1,496
Post-Modification Outstanding Balance | 0 | 388 | 1,479
Residential [Member] | Real Estate Mortgage [Member] | Term Modification [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 | 388 | 1,496
Post-Modification Outstanding Balance | 0 | $ 388 | 1,479
Residential [Member] | Real Estate Mortgage [Member] | Combination [Member] |  |  |
Troubled Debt Restructurings Segregated by Class [Abstract] |  |  |
Pre-Modification Outstanding Recorded Investment | 0 |  | 0
Post-Modification Outstanding Balance | $ 0 |  | $ 0

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