| In millions, except per share items | Jun-30-23 | Mar-31-23 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-Q | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Net income | | | -0.8 | -0.7 | -0.6 | -0.8 | -0.8 | -1.0 |
| Depreciation and amortization [+] | | | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Depreciation | | | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 |
| Amortization of intangible assets | | | | | | 0.0 | 0.0 | 0.0 |
| Asset impairment charges | | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Stock-based compensation | | | 0.2 | 0.3 | 0.3 | 0.3 | 0.4 | 0.5 |
| Change in working capital [+] | | | -0.1 | -0.1 | -0.1 | 0.1 | -0.1 | -0.1 |
| Accounts receivable | | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | -0.1 |
| Inventories | | | -0.1 | 0.0 | 0.0 | 0.0 | -0.1 | 0.0 |
| Accounts payable | | | 0.0 | -0.1 | 0.0 | 0.0 | 0.1 | 0.0 |
| Accrued expenses | | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Other | | | 0.0 | 0.0 | 0.0 | 0.0 | -0.1 | -0.1 |
| Other operating activities | | | 0.4 | 0.3 | 0.3 | 0.3 | 0.4 | 0.4 |
| Cash from operations | | | -0.2 | -0.1 | 0.0 | 0.0 | 0.0 | -0.1 |
| |
| Capital expenditures | | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Purchases of property and equipment | | | 0.0 | | | 0.0 | 0.0 | 0.0 |
| Other cash from investing | | | | 0.0 | | | | |
| Cash from investing | | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| |
| Other cash from financing | | | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 |
| Cash from financing | | | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 |
| |
| Free cash flow | | | -0.2 | -0.1 | 0.0 | 0.0 | -0.1 | -0.2 |
| Per share (diluted) | | | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | ($0.01) |
| |
| Cash paid for interest | | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |