| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 |
| | 10-K | 10-K | 10-K | 10-K |
| Revenues | 0.3 | 3.0 | 39.6 | 18.0 |
| Revenues growth | -90.0% | -92.4% | 119.8% | |
| Operating expenses | | | | |
| Cost of revenues | 51.5 | 36.7 | 15.4 | 6.8 |
| Advertising and marketing | 40.7 | 52.2 | 42.2 | 41.6 |
| General and administrative | 37.5 | 34.9 | 20.9 | 14.0 |
| Impairment of goodwill and intangible assets | 3.6 | | | |
| Total operating expenses | 133.3 | 123.7 | 78.4 | 62.5 |
| Operating loss | -55.3 | -52.5 | -38.8 | -44.4 |
| Operating margin | -18428.0% | -1749.3% | -97.9% | -246.6% |
| Change in fair value of warrant liability | 5.4 | 15.2 | | |
| Interest and other income (expense) | 0.2 | 0.5 | | |
| Loss before income taxes | -50.6 | -37.3 | -48.4 | -42.4 |
| Provision for income taxes | 0.4 | 0.4 | 0.2 | 0.1 |
| Net loss | -50.9 | -37.6 | -48.6 | -42.5 |
| |
| Net loss per share | | | | |
| Basic (in Dollars per share) | ($0.96) | ($0.73) | ($3.30) | ($4.44) |
| Diluted (in Dollars per share) | ($0.96) | ($1.02) | ($3.30) | ($4.44) |
| |
| Weighted average number of common shares outstanding | | | | |
| Basic (in Shares) | 52.8 | 51.5 | 18.9 | 13.2 |
| Diluted (in Shares) | 52.8 | 51.8 | 18.9 | |