| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-Q | 8-K | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Interest and fees on loans | 111.0 | 106.9 | | 81.3 | 76.0 | 76.9 | 75.1 | 71.1 |
| |
| Interest and dividends on investment securities: | | | | | | | | |
| Taxable | 4.0 | 4.2 | 4.2 | 2.6 | 1.9 | 1.3 | 1.1 | 1.0 |
| Tax-exempt | 1.2 | 1.1 | 1.2 | 0.9 | 0.7 | 0.5 | 0.5 | 0.6 |
| Dividends | 0.9 | 0.9 | 0.7 | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 |
| Interest on federal funds sold and other short-term investments | 4.1 | 3.0 | | 0.3 | 0.1 | 0.2 | 0.1 | 0.1 |
| Total interest income | 121.3 | 116.1 | 112.5 | 85.4 | 78.9 | 79.0 | 77.0 | 73.1 |
| |
| Interest expense | | | | | | | | |
| Deposits | 50.7 | 40.1 | | 5.7 | 5.0 | 5.3 | 5.5 | 6.4 |
| Borrowings | 6.8 | 8.9 | | 4.1 | 3.6 | 3.3 | 3.3 | 3.6 |
| Total interest expense | 57.5 | 49.0 | 34.5 | 9.8 | 8.6 | 8.6 | 8.8 | 10.0 |
| Net interest income | 63.8 | 67.1 | 78.0 | 75.6 | 70.4 | 70.5 | 68.2 | 63.0 |
| Provision for credit losses | 3.0 | 1.0 | | 3.0 | 1.5 | 0.8 | 1.1 | -1.6 |
| Net interest income after provision for credit losses | 60.8 | 66.1 | 74.7 | 72.6 | 68.9 | 69.6 | 67.1 | 64.7 |
| |
| Noninterest income | | | | | | | | |
| Deposit, loan and other income | 1.5 | 1.4 | 1.9 | 1.9 | 1.7 | 1.5 | 1.7 | 2.2 |
| Income on bank owned life insurance | 1.6 | 1.5 | | 1.3 | 1.2 | 1.2 | 1.3 | 1.2 |
| Net gains on sale of loans held-for-sale | 0.6 | 0.0 | | 0.6 | 0.7 | 1.1 | 1.1 | 0.8 |
| Net losses on equity securities | -0.2 | -0.2 | | -0.4 | -0.6 | | | |
| Total noninterest income | 3.4 | 2.8 | 3.5 | 3.4 | 3.1 | 3.8 | 4.0 | 4.5 |
| |
| Noninterest expenses | | | | | | | | |
| Salaries and employee benefits | 21.8 | 22.3 | | 19.7 | 18.8 | 16.6 | 16.8 | 15.4 |
| Occupancy and equipment | 2.7 | 2.8 | | 2.7 | 1.9 | 2.8 | 2.7 | 3.2 |
| FDIC insurance | 1.7 | 1.0 | | 0.7 | 0.6 | | | 0.6 |
| Professional and consulting | 1.9 | 2.2 | | 2.1 | 1.8 | 2.0 | 2.2 | 2.1 |
| Marketing and advertising | 0.6 | 0.5 | 0.5 | 0.4 | 0.4 | 0.5 | 0.3 | 0.3 |
| Other components of net periodic pension expense | 0.0 | 0.0 | | -0.1 | -0.1 | | | |
| Increase in value of acquisition price | | | | 0.8 | 0.7 | | | |
| Other expenses | 2.8 | 2.8 | | 2.1 | 1.9 | -1.3 | 3.7 | 1.7 |
| Total noninterest expenses | 35.5 | 34.9 | 33.3 | 31.7 | 29.2 | 28.1 | 28.2 | 26.3 |
| Income tax expense | 7.4 | 9.1 | 12.3 | 11.9 | 11.4 | 12.3 | 10.9 | 10.7 |
| Net income | 21.4 | 24.9 | 32.6 | 32.4 | 31.4 | 33.0 | 32.1 | 32.2 |
| Preferred dividends | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | | | |
| Net income available to common stockholders | 19.9 | 23.4 | 31.0 | 30.8 | 29.9 | | | 32.2 |
| |
| Earnings per common share | | | | | | | | |
| Basic (in dollars per share) | $0.51 | $0.60 | $0.79 | $0.78 | $0.76 | $0.79 | $0.81 | $0.81 |
| Diluted (in dollars per share) | $0.51 | $0.59 | $0.79 | $0.78 | $0.75 | $0.79 | $0.80 | $0.81 |