| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 |
| | 10-K | 10-K | 10-K |
| Cash flows from operating activities: | | | |
| Adjustments to reconcile net loss to net cash used in operating activities: | | | |
| Depreciation and amortization | 0.1 | 0.0 | |
| Amortization of right-of-use assets | 0.5 | 0.1 | |
| Amortization of debt and warrant discounts | | | 0.0 |
| Changes in operating assets and liabilities | | | |
| Accounts receivable | -0.4 | 0.2 | |
| Inventory | -1.3 | -0.9 | |
| Accounts payable | 0.5 | -0.4 | |
| Dividends payable | | | |
| Lease and warranty liabilities | | | |
| Net cash used in operating activities | -2.7 | -4.3 | 0.0 |
| |
| Cash flows from investing activities: | | | |
| Purchase of property and equipment | -0.3 | 0.0 | |
| Cash used in investing activities | -0.3 | 0.0 | 0.0 |
| |
| Cash flows from financing activities: | | | |
| Proceeds from related party advances, net of payments | 0.1 | | |
| Net cash provided by financing activities | 2.9 | 4.2 | 0.0 |