| 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 | 46.0 | 47.8 | 50.5 | 44.3 | 38.0 | 34.0 | 32.4 | 30.8 |
| Interest income on investments | 14.7 | 12.0 | 11.4 | 10.5 | 10.8 | 11.1 | 11.3 | 12.0 |
| | 61.6 | 60.5 | 62.9 | 56.2 | 49.7 | 45.8 | 44.0 | 43.2 |
| Interest on deposits | 7.3 | 4.3 | 7.8 | 10.2 | 6.8 | 4.4 | 3.1 | 3.0 |
| Total interest expense | 23.9 | 13.3 | 24.0 | 32.1 | 7.6 | 5.6 | 4.1 | 4.2 |
| Net interest income | 53.2 | 56.0 | 54.8 | 45.2 | 42.1 | 40.2 | 39.9 | 39.0 |
| Provision for loan losses | -0.9 | -0.8 | 5.7 | 1.3 | 0.6 | 1.5 | 0.5 | 1.1 |
| Net interest income after provision for loan losses | 54.1 | 56.8 | 49.2 | 43.9 | 41.5 | 38.7 | 39.4 | 37.9 |
| Deposit and loan fees | | | | | | | 1.6 | 1.7 |
| Gain on sale of investments, net | | | | | | | 0.4 | 0.9 |
| Other non-interest income | 9.7 | 10.5 | 10.6 | 8.6 | 7.9 | 8.0 | 6.0 | 5.6 |
| Total non-interest income | 9.7 | 10.5 | 10.6 | 8.6 | 7.9 | 8.0 | 8.1 | 8.3 |
| Non-interest expenses | 38.6 | 36.6 | 36.6 | 31.5 | 28.0 | 25.4 | 24.9 | 25.3 |
| Pre-tax income before non-recurring items | 25.2 | 30.7 | 23.2 | 21.0 | 21.6 | 21.3 | 22.5 | 20.8 |
| Non-recurring items | | | | | 0.2 | | | |
| Pre-tax income | 25.2 | 30.7 | 23.2 | 21.0 | 21.4 | 21.3 | 22.5 | 20.8 |
| Income taxes | 5.9 | 6.8 | 4.4 | 3.8 | 4.4 | 7.6 | 6.8 | 5.8 |
| Tax rate | 23.3% | 22.0% | 18.9% | 18.3% | 20.6% | 35.6% | 30.2% | 27.9% |
| Net income | 19.3 | 23.9 | 18.9 | 17.2 | 17.0 | 13.7 | 15.7 | 15.0 |
| Net margin | 30.2% | 35.5% | 31.5% | 32.7% | 34.5% | 29.3% | 33.1% | 32.5% |
| |
| Basic EPS | $2.14 | $2.62 | $2.06 | $1.86 | $1.83 | $1.47 | $1.69 | $1.61 |
| Diluted EPS | $2.14 | $2.62 | $2.06 | $1.86 | $1.83 | $1.47 | $1.69 | $1.61 |
| |
| Shares outstanding (basic) | 9.0 | 9.1 | 9.1 | 9.2 | 9.3 | 9.3 | 9.3 | 9.3 |
| Shares outstanding (diluted) | 9.0 | 9.1 | 9.1 | 9.2 | 9.3 | 9.3 | 9.3 | 9.3 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |