| 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-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Net income | -7.9 | -3.4 | -4.4 | -2.7 | -1.5 | -1.3 | -1.5 | -0.5 |
| Depreciation and amortization [+] | 0.6 | 0.5 | 0.5 | 0.4 | 0.3 | 0.3 | 0.3 | 0.5 |
| Depreciation | 0.6 | 0.5 | 0.5 | 0.4 | 0.3 | 0.3 | 0.3 | 0.5 |
| Amortization of intangible assets | | | | 0.0 | | | | 0.0 |
| Other amortization | 0.0 | 0.0 | 0.0 | | | | | |
| Stock-based compensation | 0.1 | 0.1 | 0.3 | 0.1 | 0.2 | 0.2 | 0.2 | 0.1 |
| Deferred taxes | | 0.2 | 0.1 | 0.2 | -0.4 | | | |
| Change in working capital [+] | 1.3 | -3.2 | 0.3 | -1.8 | -0.7 | 0.7 | -0.6 | -3.2 |
| Accounts receivable | 0.4 | -2.2 | 1.7 | 0.1 | -0.8 | 0.8 | -0.2 | 0.2 |
| Inventories | 0.3 | -0.3 | -1.1 | -0.4 | 0.1 | -0.4 | -0.3 | 0.0 |
| Other current assets | 0.1 | -0.3 | -0.3 | 0.3 | -0.2 | 0.0 | 0.0 | -0.2 |
| Other | 0.4 | -0.4 | -0.1 | -1.8 | 0.2 | 0.4 | -0.1 | -3.2 |
| Other operating activities | 4.1 | 1.2 | -0.7 | 3.3 | 0.5 | -0.8 | -0.9 | 5.1 |
| Cash from operations | -1.8 | -4.5 | -3.9 | -0.5 | -1.6 | -0.9 | -2.6 | 2.0 |
| |
| Capital expenditures [+] | -0.1 | -0.8 | -1.0 | -1.0 | -2.0 | -1.0 | -0.9 | -0.9 |
| Purchases of property and equipment | -0.1 | 0.0 | -0.2 | -0.3 | -1.3 | -0.4 | -0.6 | -0.9 |
| Capitalized product costs | | -0.7 | -0.8 | -0.8 | -0.7 | -0.6 | -0.3 | |
| Cash from investing | -0.1 | -0.8 | -1.0 | -1.0 | -2.0 | -1.0 | -0.9 | -0.9 |
| |
| Issuance of common stock, net | | 0.0 | 1.2 | 0.0 | 3.9 | 0.0 | | 3.4 |
| Option exercises | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 |
| Financing costs | | | -0.2 | | | | | |
| Other cash from financing | 1.5 | 0.0 | 8.1 | 0.5 | 0.0 | 0.1 | 0.1 | 0.0 |
| Cash from financing | 1.5 | 0.0 | 9.5 | 0.5 | 3.9 | 0.0 | 0.0 | 3.4 |
| |
| Free cash flow | -1.9 | -4.5 | -4.1 | -0.7 | -2.9 | -1.3 | -3.2 | 1.2 |
| Per share (diluted) | ($0.16) | ($0.44) | ($0.43) | ($0.15) | ($0.35) | ($0.21) | ($0.39) | $0.14 |
| |
| Cash paid for interest | 0.3 | 0.2 | 0.1 | | | | 0.0 | |
| Cash paid for income taxes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |