| 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 and Dividend income | | | | | | | | |
| Interest and fees on loans held for investment | 56.6 | 53.1 | 49.7 | 47.7 | 47.7 | 39.8 | 32.3 | 8.8 |
| Interest from money market funds and federal funds sold | 0.3 | 0.2 | 0.2 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 |
| Interest on debt securities | 8.2 | 8.1 | 7.6 | 6.6 | 5.3 | 3.9 | 2.4 | 1.7 |
| Total interest and dividend income | 49.7 | 46.1 | 42.2 | 39.0 | 37.1 | 35.9 | 26.8 | 27.4 |
| |
| Interest expense | | | | | | | | |
| Total interest on deposits | 13.3 | 8.9 | 5.7 | 3.9 | 3.4 | 3.4 | 2.5 | 2.6 |
| Interest from short-term debt | 1.5 | 1.0 | | | 0.0 | | | |
| Interest from long-term debt | 0.7 | 0.7 | 0.8 | 0.8 | 0.7 | 0.9 | 0.7 | 0.8 |
| Total interest expense | 16.2 | 11.4 | 7.2 | 5.0 | 4.2 | 4.2 | 3.2 | 3.4 |
| Net interest income | 33.5 | 34.7 | 34.9 | 34.1 | 32.9 | 31.7 | 23.6 | 24.0 |
| Provision for Credit Losses | 0.5 | | | | -2.7 | -3.3 | -2.8 | |
| Net Interest Income After Provision for Credit Losses | 32.2 | 33.4 | 34.1 | 34.5 | 33.6 | 34.2 | 25.7 | 25.5 |
| |
| Noninterest income | | | | | | | | |
| Service charges on deposit accounts | 1.0 | 1.0 | 1.1 | 1.1 | 1.2 | 1.2 | 0.8 | 0.9 |
| Title insurance income | 1.4 | 1.4 | 1.6 | 1.7 | 1.9 | 2.1 | 1.6 | 1.7 |
| Income on bank owned life insurance | 1.2 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.5 | 0.5 |
| ATM and check card fees | 2.6 | 2.5 | 2.5 | 2.4 | 2.4 | | | |
| Other operating income | 0.4 | 0.5 | | | 0.4 | 0.2 | | |
| Total noninterest income | 9.5 | 9.8 | 10.4 | 9.5 | 10.4 | 10.4 | 8.0 | 9.2 |
| |
| Noninterest expense | | | | | | | | |
| Salaries | 16.7 | 16.4 | 16.2 | 15.8 | 15.6 | 14.4 | 10.8 | 10.6 |
| |
| Employee benefits | | | | | | | | |
| Occupancy expense | 1.4 | 1.4 | 1.4 | 1.4 | 1.3 | 1.3 | 1.0 | 1.0 |
| Equipment expense | 1.3 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 0.9 | 0.9 |
| FDIC insurance assessment | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 | 0.4 | 0.3 | 0.3 |
| Legal and professional fees | 1.2 | 1.0 | 0.9 | 1.1 | 1.2 | 1.1 | 0.9 | 0.7 |
| ATM and check card fees | 1.3 | 1.3 | 1.3 | 1.2 | 1.2 | | | |
| Telecommunication and data processing expense | 2.5 | 2.8 | 2.9 | 3.1 | 3.1 | 3.0 | 2.1 | 1.9 |
| Bank franchise tax | 0.7 | 0.7 | 0.7 | 0.6 | 0.7 | 0.7 | 0.5 | 0.5 |
| Other operating expenses | 4.9 | 4.6 | 4.3 | 4.2 | 4.6 | 4.9 | 4.0 | 4.2 |
| Total noninterest expense | 36.5 | 35.9 | 35.7 | 35.4 | 35.3 | 34.2 | 25.7 | 25.1 |
| Income tax (benefit) expense | 0.0 | 0.5 | 0.5 | 0.6 | 0.7 | 1.0 | 1.1 | 1.3 |
| Net Income | 5.3 | 6.8 | 8.3 | 8.0 | 8.0 | 9.5 | 6.9 | 8.3 |
| |
| Per Common Share Data | | | | | | | | |
| Net income-basic | $1.53 | $1.96 | $2.40 | $2.30 | $2.34 | $2.82 | $3.25 | $3.70 |
| |
| Cash dividends on common stock | $1.04 | $1.04 | $1.04 | $1.04 | $1.04 | $1.04 | $1.04 | $1.04 |
| |
| Weighted average common shares outstanding | 3.5 | 3.5 | 3.4 | 3.4 | 3.3 | 3.3 | 2.4 | 2.4 |