| In millions, except per share items | Jun-30-23 | Jun-05-23 | Dec-31-22 | Dec-05-22 | Sep-05-22 | Jun-30-22 | Jun-05-22 | Mar-31-22 |
| | 10-Q | 8-K | 10-K | 8-K | 8-K | 10-Q | 8-K | 10-K |
| Net income | | | -26.2 | | | -17.1 | | -18.5 |
| Depreciation and amortization [+] | | | | | | 1.1 | | |
| Depreciation | | | 1.2 | | | 0.2 | | |
| Asset impairment charges | | | 17.4 | | | 8.7 | | |
| Change in working capital [+] | | | | | | -7.0 | | |
| Inventories | | | | | | 1.5 | | |
| Other current assets | | | 0.8 | | | -0.5 | | |
| Accounts payable | | | | | | -1.2 | | |
| Accrued expenses | | | 1.7 | | | 1.8 | | |
| Other | | | | | | -8.7 | | |
| Other operating activities | | | | | | -6.3 | | |
| Cash from operations | | | | | | -18.7 | | -17.0 |
| |
| Capital expenditures [+] | | | | | | -1.1 | | -1.5 |
| Capitalized product costs | | | 0.0 | | | | | |
| Sales of short-term investments | | | | | | 8.5 | | |
| Sales of short-term investments | | | | | | 8.5 | | |
| Other cash from investing | | | | | | 0.3 | | 1.1 |
| Cash from investing | | | | | | 7.8 | | -10.9 |
| |
| Other cash from financing | | | | | | 1.2 | | |
| Cash from financing | | | | | | 0.6 | | 0.7 |
| |
| Free cash flow | | | | | | -19.7 | | -18.4 |
| Per share (diluted) | | | | | | ($2.18) | | ($2.04) |
| |