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Loans and Allowance for Credit Losses on Loans - Collateral dependent loans (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | $ 29,253 |
ACL Allocation | 33,855 | $ 19,789
Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 25,150 |
Accounts Receivable |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 1,070 |
Equipment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 2,377 |
Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 656 |
Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 2,637 |
Commercial |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 1,125 |
Commercial | Accounts Receivable |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 1,070 |
Commercial | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 55 |
Commercial | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 56 |
Leases |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 2,974 |
Leases | Equipment |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 2,377 |
Leases | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 597 |
Leases | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 880 |
Commercial real estate - Investor |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 4,179 |
Commercial real estate - Investor | Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 4,179 |
Commercial real estate - Investor | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 84 |
Commercial real estate - Owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 9,726 |
Commercial real estate - Owner occupied | Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 9,726 |
Commercial real estate - Owner occupied | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 195 |
Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 1,891 |
Construction | Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 1,891 |
Construction | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 952 |
Real estate - Investor |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 928 |
Real estate - Investor | Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 928 |
Real estate - Owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 3,535 |
Real estate - Owner occupied | Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 3,535 |
Real estate - Owner occupied | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 10 |
Multifamily |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 3,838 |
Multifamily | Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 3,838 |
Multifamily | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 378 |
HELOC |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 1,053 |
HELOC | Real Estate |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 1,053 |
HELOC | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | 78 |
Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 4 |
Other | Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans pledged as collateral | 4 |
Other | Collateral |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
ACL Allocation | $ 4 |

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