| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | S-1 |
| Net income | -0.8 | 17.0 | -12.2 | 2.4 | 0.3 | -5.1 |
| Depreciation and amortization [+] | 0.6 | 0.5 | 1.0 | | | 0.7 |
| Depreciation | 0.3 | 0.2 | 0.3 | | | 0.4 |
| Amortization of intangible assets | 0.3 | 0.3 | 0.7 | | | 0.2 |
| Asset impairment charges | | 0.2 | 3.7 | | | |
| Stock-based compensation | 11.4 | 11.3 | 0.5 | | | 0.0 |
| Change in working capital [+] | -2.1 | 2.5 | 22.2 | 0.4 | 0.7 | -4.1 |
| Accounts receivable | 0.7 | 0.8 | 1.3 | | | -1.4 |
| Other current assets | -7.0 | 0.2 | 6.5 | 0.0 | -0.1 | -1.3 |
| Accounts payable | | | | -0.1 | 0.2 | |
| Deferred revenues | | | 10.8 | | | |
| Other | 4.2 | 1.5 | 3.6 | 0.5 | 0.5 | -1.4 |
| Other operating activities | -5.7 | -4.1 | 0.9 | -4.2 | -1.3 | -11.6 |
| Cash from operations | 3.5 | 27.5 | 16.0 | -1.5 | -0.4 | -20.1 |
| |
| Capital expenditures [+] | -5.7 | -0.7 | -4.0 | 0.0 | 0.0 | -0.2 |
| Purchases of property and equipment | -0.5 | -0.1 | -0.1 | | | -0.2 |
| Capitalized product costs | -5.2 | -0.6 | -3.9 | | | |
| Other cash from investing | | | | 0.8 | -171.0 | -4.2 |
| Cash from investing | -5.7 | -0.7 | -4.0 | 0.8 | -171.0 | -4.3 |
| |
| Issuance of common stock, net | | | | | 176.2 | |
| Financing costs | | | | | -0.5 | |
| Other cash from financing | -2.4 | -4.1 | -17.6 | | -4.2 | 34.9 |
| Cash from financing | -2.4 | -4.1 | -17.6 | 0.0 | 172.5 | 34.9 |
| |
| Free cash flow | 3.0 | 27.4 | 16.0 | -1.5 | -0.4 | -20.3 |
| Per share (diluted) | ($0.18) | $2.25 | $1.96 | ($0.07) | ($0.02) | ($202,680.00) |
| |
| Cash paid for interest | | 0.2 | | | | |
| Cash paid for income taxes | 8.1 | 4.2 | | | | |