Loans and allowance for credit losses - Deferrals Program (Details) $ in Thousands |
Dec. 31, 2020
USD ($)
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 202,517
|
| % of Loans |
2.90%
|
| Commercial and industrial |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 7,118
|
| % of Loans |
0.50%
|
| Construction |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 1,918
|
| % of Loans |
0.20%
|
| Residential real estate | 1-to-4 family mortgage |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 19,201
|
| % of Loans |
1.80%
|
| Residential real estate | Residential line of credit |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 204
|
| % of Loans |
0.00%
|
| Residential real estate | Multi-family mortgage |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 3,305
|
| % of Loans |
1.90%
|
| Commercial real estate | Owner occupied |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 19,815
|
| % of Loans |
2.10%
|
| Commercial real estate | Non-owner occupied |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 139,590
|
| % of Loans |
8.70%
|
| Consumer and other |
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] |
|
| Outstanding loans balance |
$ 11,366
|
| % of Loans |
3.60%
|