| 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 | 74.3 | 66.4 | 63.5 | 54.9 | 50.5 | 42.1 | 35.8 | 29.0 |
| Interest income on investments | 8.1 | 6.0 | 6.0 | 6.2 | 5.5 | 5.5 | 6.7 | 6.3 |
| | 83.4 | 73.2 | 70.3 | 62.0 | 56.8 | 48.1 | 43.0 | 35.7 |
| Interest expense: |
| Interest on deposits | 7.3 | 5.8 | 6.9 | 9.2 | 6.9 | 4.6 | 4.2 | 4.1 |
| | 11.2 | 7.1 | 8.1 | 12.0 | 9.6 | 5.8 | 5.0 | 4.8 |
| Net interest income | 72.1 | 66.1 | 62.2 | 49.9 | 47.2 | 42.3 | 38.0 | 30.8 |
| Provision for loan losses | 1.7 | 1.6 | 2.4 | 1.7 | 1.9 | 2.5 | 1.5 | 0.5 |
| Net interest income after provision for loan losses | 70.5 | 64.6 | 59.8 | 48.3 | 45.3 | 39.7 | 36.4 | 30.4 |
| Deposit and loan fees | 5.3 | 4.8 | 4.2 | 4.7 | | | | |
| Gain on sale of investments, net | | | | | | | | 0.4 |
| Other non-interest income | 4.4 | 7.6 | 7.2 | 3.7 | 7.7 | 8.7 | 7.9 | 7.0 |
| Total non-interest income | 9.7 | 12.3 | 11.4 | 8.4 | 7.7 | 8.7 | 7.9 | 7.4 |
| Non-interest expenses | 44.7 | 41.6 | 40.8 | 33.3 | 31.6 | 29.3 | 28.7 | 23.4 |
| Pre-tax income before non-recurring items | 35.5 | 35.3 | 32.5 | 23.8 | 21.4 | 19.2 | 15.7 | 15.5 |
| Non-recurring items | | | 2.2 | 0.5 | | 0.2 | | 1.1 |
| Pre-tax income | 35.5 | 35.3 | 30.4 | 23.3 | 21.4 | 19.1 | 15.7 | 14.3 |
| Income taxes | 6.4 | 6.2 | 5.3 | 3.8 | 3.4 | 6.0 | 3.0 | 2.7 |
| Tax rate | 18.1% | 17.6% | 17.3% | 16.4% | 15.9% | 31.6% | 19.4% | 19.0% |
| Net income | 29.1 | 29.1 | 25.1 | 19.5 | 18.0 | 13.0 | 12.6 | 11.6 |
| Net margin | 36.2% | 37.9% | 35.3% | 34.4% | 34.0% | 26.9% | 28.5% | 30.8% |
| |
| Basic EPS | $7.32 | $7.31 | $6.46 | $5.42 | $5.04 | $3.67 | $3.57 | $3.60 |
| Diluted EPS | $7.32 | $7.31 | $6.46 | $5.41 | $5.04 | $3.67 | $3.57 | $3.60 |
| |
| Shares outstanding (basic) | 4.0 | 4.0 | 3.9 | 3.6 | 3.6 | 3.6 | 3.5 | 3.2 |
| Shares outstanding (diluted) | 4.0 | 4.0 | 3.9 | 3.6 | 3.6 | 3.6 | 3.5 | 3.2 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |