| In millions, except per share items | Jun-30-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 8-K | 10-Q | 10-Q | 10-Q | 10-K/A | 10-Q | 10-Q |
| Net income | 0.3 | 0.5 | 0.8 | -0.7 | -1.8 | -0.2 | 0.0 | 0.0 |
| Depreciation and amortization | | | 0.1 | 0.2 | 0.1 | 0.2 | 0.2 | 0.2 |
| Stock-based compensation | | | 0.3 | 0.4 | 0.3 | -1.0 | 0.3 | 0.4 |
| Change in working capital [+] | | | -0.3 | -1.3 | -0.5 | 1.5 | 0.8 | -0.8 |
| Accounts receivable | | | -0.3 | -1.2 | 0.9 | 1.6 | 0.4 | -1.2 |
| Inventories | | | -0.3 | -0.4 | -0.3 | 0.5 | -0.4 | -0.5 |
| Other current assets | | | -0.1 | 0.2 | -0.1 | | 0.7 | 0.1 |
| Deferred revenues | | | 0.6 | -0.2 | 0.0 | 0.3 | 0.0 | 0.1 |
| Other | | | -0.1 | 0.2 | -1.1 | -0.9 | 0.2 | 0.6 |
| Other operating activities | | | 0.2 | 0.3 | 0.3 | -0.4 | 0.2 | 0.1 |
| Cash from operations | 0.3 | | 1.2 | -1.2 | -1.6 | 0.1 | 1.4 | -0.2 |
| |
| Capital expenditures | 0.0 | | -0.1 | -0.4 | -0.3 | 1.0 | -0.1 | -0.1 |
| Purchases of property and equipment | | | -0.1 | -0.4 | -0.3 | 1.0 | -0.1 | -0.1 |
| Other cash from investing | | | | | | -1.2 | | |
| Cash from investing | 0.0 | | -0.1 | -0.4 | -0.3 | -0.3 | -0.1 | -0.1 |
| |
| Issuance of common stock, net | | | 0.2 | 0.0 | 0.0 | 0.0 | 0.4 | -0.4 |
| Other cash from financing | | | -0.2 | -0.2 | | | -0.4 | |
| Cash from financing | 0.0 | | 0.0 | -0.2 | 0.0 | 0.0 | 0.0 | -0.4 |
| |
| Free cash flow | 0.3 | | 1.1 | -1.5 | -1.9 | 1.1 | 1.3 | -0.3 |
| Per share (diluted) | $0.03 | | $0.12 | ($177.52) | ($0.22) | $0.13 | $0.15 | ($0.04) |
| |
| Cash paid for income taxes | | | 0.1 | 0.0 | 0.4 | 0.5 | -0.5 | 0.0 |