| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Interest Income | | | | | | | | |
| Loans and fees | 105.3 | 100.5 | 95.3 | 84.9 | 77.0 | 67.8 | 57.8 | 60.0 |
| Federal funds sold and interest-bearing deposits with banks | 2.0 | 0.7 | 0.4 | 0.4 | 0.2 | 0.2 | 0.2 | 0.2 |
| Taxable investment securities and other | 11.9 | 11.6 | 10.8 | 9.6 | 8.3 | 6.7 | 5.0 | 4.2 |
| Tax-exempt investment securities | 1.6 | 1.6 | 1.7 | 1.5 | 1.4 | 1.3 | 0.8 | 0.6 |
| Total Interest Income | 120.8 | 114.4 | 108.2 | 96.4 | 86.9 | 76.0 | 63.7 | 64.9 |
| |
| Interest Expense | | | | | | | | |
| Deposits | 36.7 | 29.2 | 21.8 | 13.6 | 4.8 | 4.0 | 3.4 | 4.0 |
| Federal funds purchased and securities sold under agreements to repurchase | 10.4 | 7.2 | 2.8 | 0.7 | 0.2 | 0.0 | 0.0 | 0.0 |
| Other borrowings | 2.2 | 2.1 | 2.0 | 1.8 | 1.7 | 1.6 | 1.2 | 1.6 |
| Total Interest Expense | 49.2 | 38.5 | 53.1 | 16.1 | 6.6 | 1,661.8 | 4.7 | 5.6 |
| Net Interest Income | 71.5 | 75.9 | 81.6 | 80.3 | 80.3 | 70.4 | 59.0 | 59.3 |
| Provision for credit losses | 1.9 | 7.9 | -2.8 | 1.4 | 3.6 | 6.3 | 0.4 | -2.7 |
| Net Interest Income after Provision for Credit Losses | 69.6 | 68.0 | 84.4 | 78.9 | 76.7 | 64.1 | 58.6 | 62.0 |
| |
| Noninterest Income | | | | | | | | |
| Service charges on deposit accounts | 4.7 | 4.7 | 5.1 | 5.0 | 5.3 | 4.7 | 4.6 | 4.1 |
| Commissions and fees | 4.7 | 4.7 | 5.1 | 5.0 | 5.3 | 4.7 | 4.6 | 4.1 |
| Income on bank owned life insurance | 1.0 | 0.8 | 0.9 | 1.5 | 0.8 | 0.8 | 0.8 | 0.6 |
| (Loss) gain on equity securities | -0.1 | | | | -0.4 | | | |
| Gains on sales of loans held for sale | 0.2 | 0.4 | 0.3 | 0.4 | 0.7 | 1.4 | 0.4 | 0.6 |
| Swap income | 0.4 | 0.1 | 0.5 | 0.7 | 0.4 | | | |
| Other income | 0.5 | 0.1 | 0.3 | 0.1 | 0.2 | 0.3 | 0.2 | 0.2 |
| Total Noninterest Income | 13.5 | 6.3 | 14.0 | 14.9 | 14.5 | 14.0 | 11.8 | 11.0 |
| |
| Noninterest Expense | | | | | | | | |
| Compensation and employee benefits | 27.6 | 30.0 | 26.9 | 26.6 | 26.9 | 27.7 | 20.2 | 21.5 |
| Premises and equipment | 8.0 | 8.0 | 7.7 | 7.6 | 7.7 | 8.0 | 6.2 | 6.2 |
| FDIC insurance expense | 1.6 | 1.0 | 0.7 | 0.7 | 0.7 | 0.7 | 0.5 | 0.5 |
| Data processing expense | 2.0 | 1.9 | 1.3 | 1.4 | 1.9 | 1.7 | 1.4 | 1.5 |
| Merger-related expenses | 0.2 | 0.3 | | 3.5 | | 4.6 | | 1.1 |
| Other expenses | 7.5 | 7.5 | 8.3 | 8.0 | 7.9 | 7.4 | 6.5 | 6.5 |
| Total Noninterest Expense | 47.0 | 48.6 | 45.4 | 47.8 | 45.1 | 50.0 | 35.6 | 37.2 |
| Income before provision for income taxes | 29.3 | 25.7 | 46.1 | 38.3 | 38.7 | 20.9 | 28.9 | 30.3 |
| Provision for income taxes | 6.6 | 5.9 | 12.5 | 9.6 | 9.5 | 5.0 | 6.8 | 8.0 |
| Net Income | 22.6 | 19.8 | 33.6 | 28.7 | 29.1 | 15.9 | 22.2 | 22.3 |
| |
| Per Share of Common Stock | | | | | | | | |
| Basic earnings (in usd per share) | $0.34 | $0.30 | $0.51 | $0.44 | $0.44 | $0.25 | $0.43 | $0.43 |
| Diluted earnings (in usd per share) | $0.34 | $0.30 | $0.50 | $0.44 | $0.44 | $0.25 | $0.43 | $0.43 |
| |
| Dividends (in usd per share) | $0.15 | $0.15 | $0.15 | $0.15 | $0.15 | $0.14 | $0.14 | $0.14 |