| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Interest income: |
| Interest income on loans | 68.1 | 58.9 | 59.1 | 58.2 | 57.8 | 52.8 | 49.7 | 48.3 |
| Interest income on investments | 13.2 | 10.0 | 7.1 | 6.4 | 6.0 | 6.7 | 6.2 | 5.9 |
| | 81.5 | 69.0 | 66.9 | 66.9 | 64.6 | 60.1 | 56.2 | 54.2 |
| Interest expense: |
| Interest on deposits | 6.7 | 3.3 | 3.8 | 6.2 | 3.3 | 2.2 | 2.2 | 2.0 |
| | 7.3 | 3.4 | 4.0 | 6.3 | 4.1 | 3.1 | 3.8 | 3.6 |
| Net interest income | 74.2 | 65.6 | 62.9 | 60.6 | 60.5 | 57.0 | 52.3 | 50.6 |
| Provision for loan losses | | | | | | 9.0 | 2.4 | 1.6 |
| Net interest income after provision for loan losses | 74.2 | 65.6 | 62.9 | 60.6 | 60.5 | 48.0 | 49.9 | 49.1 |
| Deposit and loan fees | | | | | | | | 4.9 |
| Credit and debit card fees | | | | | | | | 3.3 |
| Gain on sale of investments, net | | | | | | | | 0.4 |
| Other non-interest income | 21.4 | 23.9 | 21.1 | 20.1 | 23.1 | 20.5 | 21.1 | 11.9 |
| Total non-interest income | 21.4 | 23.9 | 21.1 | 20.1 | 23.1 | 20.5 | 21.1 | 20.4 |
| Non-interest expenses | 59.3 | 55.7 | 55.9 | 55.7 | 56.8 | 53.8 | 56.6 | 55.4 |
| Pre-tax income before non-recurring items | 36.9 | 33.8 | 23.9 | 19.0 | 24.6 | 15.5 | 15.6 | 14.1 |
| Non-recurring items | | | | | 1.0 | 0.9 | 1.2 | |
| Pre-tax income | 36.9 | 33.8 | 23.9 | 19.0 | 23.6 | 14.7 | 14.4 | 14.1 |
| Income taxes | 8.1 | 7.3 | 4.6 | 3.4 | 4.0 | 7.3 | 4.4 | 4.7 |
| Tax rate | 22.0% | 21.7% | 19.3% | 18.0% | 17.0% | 49.4% | 30.5% | 33.1% |
| Net income | 28.8 | 26.4 | 19.3 | 15.6 | 19.6 | 7.4 | 10.0 | 9.4 |
| Net margin | 30.1% | 29.5% | 22.9% | 19.3% | 23.5% | 10.9% | 14.1% | 13.6% |
| |
| Basic EPS | $6.13 | $5.64 | $4.01 | $3.21 | $4.06 | $1.55 | $2.11 | $2.00 |
| Diluted EPS | $6.13 | $5.64 | $4.01 | $3.21 | $4.06 | $1.55 | $2.11 | $2.00 |
| |
| Shares outstanding (basic) | 4.7 | 4.7 | 4.8 | 4.9 | 4.8 | 4.8 | 4.8 | 4.7 |
| Shares outstanding (diluted) | 4.7 | 4.7 | 4.8 | 4.9 | 4.8 | 4.8 | 4.8 | 4.7 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |