| 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 |
| Cash flows from operating activities: | | | | | | | | |
| Net income | 3.9 | 4.6 | 2.8 | 6.6 | 0.6 | 3.5 | 6.3 | 2.2 |
| Adjustments to reconcile net income to net cash from operating activities: | | | | | | | | |
| Provision (benefit) for credit losses | -0.7 | | | | | | | |
| Amortization of debt issuance costs | -0.7 | -1.5 | -0.8 | -0.6 | -0.3 | -0.4 | 0.9 | -0.9 |
| Deferred income taxes | 1.4 | -0.1 | -7.1 | 1.9 | 0.2 | 1.1 | 2.1 | 0.5 |
| Change in fair value of warrants | -0.4 | 1.0 | 0.2 | -1.8 | 0.5 | 0.7 | 0.4 | 0.2 |
| Change in fair value of equity securities | | | 0.0 | 0.0 | 0.5 | 0.0 | -0.3 | -0.3 |
| Loan discount and fee accretion | -0.7 | -1.5 | -0.8 | -0.6 | -0.3 | -0.4 | 0.9 | -0.9 |
| Interest paid-in-kind | -0.6 | -0.4 | -2.7 | -1.7 | -0.9 | -0.7 | -0.3 | -0.7 |
| Stock-based compensation | 0.2 | 0.0 | 0.2 | 0.1 | 0.2 | 0.1 | 0.6 | 0.2 |
| Depreciation and amortization | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.7 | 0.8 | 0.8 |
| Changes in operating assets and liabilities: | | | | | | | | |
| Interest and accounts receivable | 0.0 | -1.3 | 4.3 | -5.5 | 0.1 | -0.2 | 0.5 | 0.4 |
| Other assets | 0.1 | -0.9 | 0.0 | 0.2 | 0.0 | -0.2 | -1.4 | 0.1 |
| Accounts payable and other liabilities | 1.1 | -1.4 | -1.0 | 1.9 | -2.3 | -0.3 | 1.6 | 1.4 |
| Net cash provided by operating activities | 4.7 | 0.7 | 3.1 | 1.7 | -0.8 | 4.3 | 11.2 | 3.8 |
| Cash flows from investing activities: | | | | | | | | |
| Investment in finance receivables | -0.1 | -13.0 | -21.4 | -46.4 | -2.7 | -22.7 | -22.3 | |
| Repayment of finance receivables | 1.1 | 1.9 | 1.7 | 9.7 | 17.2 | 17.0 | 36.0 | 8.4 |
| Corporate debt securities principal payments | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 |
| Purchases of property and equipment | -0.2 | 0.0 | -0.1 | -0.1 | -0.1 | -0.1 | -0.2 | -0.2 |
| Net cash provided by investing activities | 14.8 | -11.1 | -15.7 | -36.7 | 14.5 | -5.8 | 15.4 | 8.2 |
| |
| Cash flows from financing activities: | | | | | | | | |
| Payments for financing costs | -0.9 | | | | | | | |
| Net payments on credit facility | -10.5 | 8.0 | 2.4 | | | 0.0 | | 0.0 |
| Repurchases of common stock, including fees and expenses | -4.6 | -0.5 | -0.5 | -0.6 | | | | |
| Net cash used in financing activities | -16.0 | 7.5 | -0.6 | -0.8 | | 0.0 | -2.4 | 0.0 |
| Net increase in cash and cash equivalents | 0.6 | | | | 12.3 | | | |
| Cash and cash equivalents at beginning of period | | 6.2 | | | | 42.9 | | |
| Cash and cash equivalents at end of period | 3.6 | 3.2 | -13.2 | -35.7 | 13.7 | 41.4 | 24.2 | 12.0 |