| 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 | 8-K | 10-Q | 10-Q |
| Net income | -25.6 | -23.6 | -31.7 | -32.4 | -35.2 | 0.0 | -18.1 | -35.7 |
| Depreciation and amortization | 1.1 | 0.8 | 0.7 | 0.6 | 0.5 | | 0.3 | 0.2 |
| Stock-based compensation | 1.9 | 3.9 | 4.0 | 3.8 | -0.7 | | 7.4 | 10.0 |
| Change in working capital [+] | -1.2 | -6.3 | -1.5 | -0.8 | 3.1 | | -2.6 | 2.1 |
| Accounts receivable | -0.2 | -0.1 | | | | | | |
| Inventories | 0.0 | -1.7 | | | | | | |
| Other current assets | -1.2 | 0.7 | -2.4 | 0.5 | 0.9 | | -2.8 | 1.2 |
| Accounts payable | -1.2 | -0.7 | -0.5 | -1.4 | 1.5 | | -0.4 | 0.5 |
| Accrued expenses | 1.5 | -4.5 | 1.4 | 0.1 | 0.7 | | 0.7 | 0.4 |
| Other | 0.0 | 0.0 | | | | | | |
| Other operating activities | 0.9 | -3.5 | 6.6 | 2.8 | 9.1 | | -5.5 | 4.3 |
| Cash from operations | -22.9 | -28.7 | -21.8 | -25.9 | -23.2 | | -18.5 | -19.1 |
| |
| Capital expenditures [+] | -0.8 | -3.5 | -1.8 | -3.0 | -2.5 | | -1.9 | -0.7 |
| Purchases of property and equipment | -1.0 | -2.6 | -1.8 | -3.0 | -2.5 | | -1.9 | -0.7 |
| Capitalized product costs | 0.2 | -0.9 | | | | | | |
| Purchases of short-term investments, net | 30.0 | 29.5 | 18.9 | 75.8 | 24.2 | | -438.7 | |
| Purchases of short-term investments | | | -0.7 | 0.7 | -0.8 | | -438.7 | |
| Sales of short-term investments | 30.0 | 29.5 | 19.7 | 75.1 | 25.0 | | | |
| Cash from investing | 29.2 | 26.0 | 17.2 | 72.8 | 21.7 | | -440.6 | -0.7 |
| |
| Option exercises | | | 1.6 | 0.3 | 0.7 | | 0.7 | 2.7 |
| Other cash from financing | | | 3.3 | -0.3 | 1.5 | | -0.1 | 517.9 |
| Cash from financing | 0.0 | 0.0 | 1.6 | -0.6 | 0.7 | | -0.7 | 515.2 |
| |
| Free cash flow | -23.9 | -31.3 | -23.6 | -28.9 | -25.7 | | -20.4 | -19.9 |
| Per share (diluted) | ($0.17) | ($0.23) | ($0.17) | ($0.21) | ($0.19) | | ($0.15) | ($0.54) |