| In millions, except per share items | Jan-31-23 | Oct-31-22 | Apr-30-22 | Jan-31-22 | Oct-31-21 | Jul-31-21 | Apr-30-21 | Jan-31-21 |
| | 10-Q | 10-Q | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Revenues | 0.1 | 0.1 | 0.9 | 0.1 | 0.2 | 1.0 | 1.0 | 1.0 |
| Revenue growth | -5.4% | -63.4% | -11.6% | -92.3% | -81.9% | -21.9% | -19.1% | -22.4% |
| Cost of goods sold | 0.0 | 0.0 | 0.0 | 0.0 | 25.0 | 0.0 | 0.0 | 0.0 |
| Gross profit | 0.1 | 0.1 | 0.9 | 0.1 | -24.8 | 1.0 | 1.0 | 1.0 |
| Gross margin | 100.0% | 100.0% | 100.0% | 100.0% | -12989.0% | 100.0% | 100.0% | 100.0% |
| Selling, general and administrative [+] | 2.1 | 3.1 | 3.9 | 1.7 | 12.3 | 12.1 | 3.0 | 2.8 |
| General and administrative | 2.1 | | | 1.7 | | 12.1 | | |
| Research and development | 2.2 | 2.1 | 1.4 | -3.3 | 2.2 | 1.6 | 1.3 | 1.6 |
| Equity in earnings | | | | | -0.6 | 0.1 | 0.1 | 0.1 |
| Other operating expenses | | | | 3.3 | | | | |
| EBITDA [+] | -4.2 | -5.1 | -4.5 | -1.6 | -39.8 | -12.5 | -3.2 | -3.3 |
| EBITDA growth | 168.2% | -87.1% | 40.7% | -51.8% | 1933.2% | 410.1% | 121.3% | 128.9% |
| EBITDA margin | -6057.1% | -7314.3% | -511.8% | -2136.5% | -20843.5% | -1295.0% | -321.4% | -342.0% |
| Depreciation and amortization | 0.0 | 0.0 | 0.4 | 0.0 | 0.0 | 0.4 | 0.2 | 0.4 |
| EBIT [+] | -4.3 | -5.1 | -4.9 | -1.6 | -39.8 | -12.9 | -3.4 | -3.7 |
| EBIT growth | 166.4% | -87.1% | 43.6% | -57.0% | 1563.0% | 343.9% | 76.9% | 95.2% |
| EBIT margin | -6084.3% | -7345.7% | -555.1% | -2160.8% | -20853.4% | -1334.4% | -341.7% | -388.0% |
| Non-recurring items [+] | | | | | 10.3 | | | 7.0 |
| Asset impairment | | | | | 10.3 | | | 7.0 |
| Interest income, net [+] | 0.6 | 0.2 | -0.3 | | 0.2 | 0.0 | 0.0 | |
| Interest expense | | 0.1 | 0.4 | 0.1 | 0.0 | 0.0 | 0.0 | |
| Interest income | 0.6 | 0.2 | 0.1 | | 0.2 | | 0.0 | |
| Other income (expense), net [+] | 0.5 | -0.2 | -0.3 | -0.4 | -78.4 | 0.4 | 0.6 | 2.4 |
| Impairment of investments | -0.1 | -0.2 | | | | | | |
| Gain (loss) on foreign currency transactions | | | | | | | | 0.0 |
| Pre-tax income | -3.2 | -5.2 | -5.5 | -2.1 | -128.3 | -12.5 | -2.7 | -8.3 |
| Income taxes | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 0.0 | 0.0 | 0.0 |
| Tax rate | 0.2% | 0.1% | | 0.2% | | | 0.1% | 0.0% |
| Minority interest | -0.2 | -0.1 | 0.0 | -0.2 | -17.4 | 0.2 | -0.1 | -0.1 |
| Earnings from continuing ops | -3.1 | 1.7 | -5.5 | -1.8 | -111.5 | -12.6 | -2.6 | -8.2 |
| Earnings from discontinued ops | -0.2 | -0.1 | | -0.5 | -0.5 | | | |
| Net income | -3.3 | 1.6 | -5.5 | -2.3 | -112.0 | -12.6 | -2.6 | -8.2 |
| Net margin | -4642.9% | 2274.3% | -631.9% | -3136.5% | -58651.3% | -1300.5% | -257.9% | -851.4% |
| |
| Basic EPS [+] | ($0.13) | $0.07 | ($0.28) | ($0.09) | ($5.88) | ($0.76) | ($0.15) | ($0.50) |
| Growth | 45.2% | -101.2% | 82.7% | -81.8% | 6338.0% | 109.4% | 12.2% | 536.2% |
| Diluted EPS [+] | ($0.13) | $0.07 | ($0.28) | ($0.09) | ($5.88) | ($0.76) | ($0.15) | ($0.50) |
| Growth | 45.2% | -101.2% | 82.7% | -81.8% | 6338.0% | 109.4% | 12.2% | 536.2% |
| |
| Shares outstanding (basic) [+] | 23.2 | 23.0 | 19.8 | 19.7 | 18.9 | 16.5 | 16.7 | 16.2 |
| Growth | 17.5% | 21.5% | 18.5% | 21.9% | 19.8% | 4.8% | 5.4% | 2.4% |
| Shares outstanding (diluted) [+] | 23.2 | 23.0 | 19.8 | 19.7 | 18.9 | 16.5 | 16.7 | 16.2 |
| Growth | 17.5% | 21.5% | 18.5% | 21.9% | 19.8% | 4.8% | 5.4% | 2.4% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |