| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | S-1/A | 10-K | 10-Q | 10-Q | 10-K | 10-Q/A | 10-Q |
| Net revenue | 12.6 | 10.6 | 11.9 | 7.9 | -0.5 | 31.0 | -1.2 | -0.1 |
| Net revenue growth | 58.7% | -2278.2% | -61.6% | -12965.0% | -132.5% | | | |
| Operating costs and expenses: | | | | | | | | |
| Cost of revenue | 4.2 | 3.6 | | 1.5 | | | | |
| Research and development | 3.2 | 2.7 | | 2.6 | | | | |
| Selling, general and administrative | 27.0 | 28.7 | | 14.3 | | | | |
| Intangible amortization | 1.0 | 1.0 | | 0.9 | | | | |
| Total operating costs and expenses | 35.4 | 36.1 | | 19.4 | | | | |
| Loss from operations | -22.8 | -25.5 | 34.8 | -11.5 | -0.3 | -140.4 | -0.3 | -0.2 |
| Operating margin | -181.3% | -240.7% | 292.0% | -144.7% | | | | |
| |
| Other (income) expense: | | | | | | | | |
| Loss (gain) on derivative liability | 0.1 | 5.3 | | 2.7 | | 2.6 | | |
| Change in fair value of convertible debentures | 3.7 | | | | | | | |
| Interest expense, net | 0.0 | 0.0 | | 3.7 | | | | |
| Loss on foreign currency exchange | 0.0 | 0.0 | 0.0 | 0.0 | | | | |
| Total other expense | 3.8 | 5.3 | | 6.4 | | | | |
| Loss before income taxes | -26.7 | -30.7 | -17.8 | -17.9 | | -88.4 | | |
| Income tax expense | 0.0 | 0.0 | 0.0 | 0.0 | | | | |
| Net loss | -26.6 | -30.8 | -17.9 | -17.8 | -0.8 | -88.1 | -1.4 | -0.2 |
| |
| Earnings Per Share [Abstract] | | | | | | | | |
| Net loss per share attributable to common stockholders - basic | ($0.19) | ($0.22) | ($0.14) | ($0.13) | ($0.05) | ($0.65) | ($0.08) | ($0.01) |
| Net loss per share attributable to common stockholders - diluted | ($0.19) | ($0.22) | ($0.14) | ($0.13) | ($0.05) | ($0.65) | ($0.08) | ($0.01) |
| |
| Weighted Average Number of Shares Outstanding, Diluted [Abstract] | | | | | | | | |
| Weighted average number of shares during the period-basic | 142.6 | 141.7 | 134.2 | 133.1 | 17.3 | 0.1 | 18.1 | 17.3 |
| Weighted average number of shares during the period -diluted | 142.6 | 141.7 | 134.2 | 133.1 | 17.3 | 132.9 | 18.1 | 17.3 |