| 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 |
| Operating Activities | | | | | | | | |
| Net income | 9.7 | 9.6 | 8.4 | 8.0 | 7.0 | 6.2 | 5.7 | 6.3 |
| |
| Adjustments to reconcile net income to net cash provided by operating activities | | | | | | | | |
| Depreciation and amortization | 0.3 | 0.3 | 0.3 | 0.4 | 0.3 | 0.4 | 0.3 | 0.3 |
| |
| Provision for credit losses | | | | | | | | |
| Amortization of premiums and discounts on securities | 0.1 | 0.1 | 0.2 | -2.9 | 3.4 | 0.2 | | |
| Gain on sales of loans | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 | -0.2 | -0.2 | -0.2 |
| Net loss on sale of available-for-sale debt securities | 0.0 | 0.0 | | | 0.0 | 0.1 | | |
| Stock-based compensation expense | 0.6 | 0.5 | 0.3 | 0.1 | 0.7 | 0.3 | 0.1 | 0.3 |
| Gain on sale of premises and equipment | | | | | 0.0 | | 0.0 | |
| Cash receipts from the sale of loans originated for sale | 2.2 | 2.9 | 8.2 | 11.5 | 6.4 | 7.6 | 10.7 | 7.0 |
| Cash disbursements for loans originated for sale | -2.5 | -2.9 | -7.9 | -10.9 | -6.4 | -7.6 | -10.0 | -6.5 |
| Deferred income tax benefit | -0.1 | -0.2 | -1.2 | 0.2 | 1.0 | -1.5 | 0.3 | 0.8 |
| |
| Changes in | | | | | | | | |
| Interest receivable and other assets | -1.0 | -1.0 | -2.7 | -1.7 | -0.2 | 2.8 | 1.1 | -1.0 |
| Interest payable and other liabilities | -3.7 | 3.8 | 2.6 | -1.9 | 0.4 | 3.6 | -1.9 | -2.0 |
| Net cash provided by operating activities | 6.6 | 13.6 | 9.8 | 5.0 | 12.8 | 12.2 | 7.0 | 5.7 |
| |
| Investing Activities | | | | | | | | |
| Maturities of interest-bearing time deposits in other banks | 2.0 | 1.5 | | 0.7 | 0.5 | 1.2 | 2.0 | 0.2 |
| Purchases of interest-bearing time deposits in other banks | -7.5 | -1.0 | -4.0 | -0.2 | -0.2 | -0.2 | | |
| Proceeds from sale of available-for-sale debt securities | | | | | | 11.8 | | |
| Maturities, prepayments and calls of available-for-sale debt securities | 1.8 | 2.4 | 2.7 | 9.0 | 6.6 | 1.4 | | |
| Purchases of available-for-sale debt securities | | | | | -2.0 | -131.1 | | |
| Net change in loans | 3.0 | -8.9 | -37.3 | -80.8 | -90.5 | -33.4 | 13.8 | 3.5 |
| Purchases of premises and equipment | -2.0 | -0.2 | 0.0 | 0.0 | -0.2 | -0.1 | -0.3 | -0.1 |
| Proceeds from sale of premises and equipment | | | | 0.2 | 0.2 | 2.9 | 0.0 | 0.0 |
| Change in nonmarketable equity securities | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Net cash used in investing activities | -2.7 | -6.2 | -38.7 | -71.1 | -85.6 | -147.4 | 37.3 | 3.7 |
| |
| Financing Activities | | | | | | | | |
| Net change in deposits | 16.7 | 62.3 | -8.0 | 91.0 | 63.0 | 65.8 | -44.4 | 9.8 |
| Cash distributions | -1.5 | -1.5 | -1.1 | -1.1 | -1.1 | -1.1 | -1.0 | -1.0 |
| Shares purchased and retired for restricted stock units | 0.0 | -0.1 | | | 0.1 | -0.1 | | |
| Exercise of stock options | 0.2 | | | | | | | |
| Common stock issued for restricted stock units | 0.0 | | | | | | | |
| Net cash provided by financing activities | 15.2 | 60.9 | -9.2 | 89.9 | 62.0 | 64.6 | -45.2 | 8.6 |
| Net Increase/(Decrease) in Cash and Due from Banks | 19.1 | 68.3 | -95.7 | | -10.8 | -70.6 | | |
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| Supplemental Disclosure of Cash Flows Information | | | | | | | | |
| Interest paid | 9.1 | 7.1 | 4.9 | 2.6 | 0.9 | 0.7 | 0.7 | 0.7 |
| Income taxes paid | 7.0 | 0.0 | 3.1 | 4.9 | 1.9 | | 1.4 | 4.2 |
| Measurement period goodwill adjustment | | -0.1 | 0.5 | -0.6 | -0.1 | 0.3 | | |