| In millions, except per share items | Oct-31-22 | Oct-31-21 | Oct-31-20 | Oct-31-19 | Oct-31-18 | Oct-31-17 | Oct-31-16 | Oct-31-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K/A | 10-K | 10-K | 10-K/A |
| Total revenues | 0.0 | 0.5 | 0.0 | 0.3 | 1.1 | 0.4 | 0.3 | 9.3 |
| Revenue growth | -100.0% | | -100.0% | -77.5% | 206.9% | 20.8% | -96.8% | 152.4% |
| Cost of goods sold | 0.0 | 0.4 | 0.1 | 0.2 | 1.7 | 0.1 | 0.2 | 3.6 |
| Gross profit | 0.0 | 0.1 | -0.1 | 0.1 | -0.6 | 0.3 | 0.1 | 5.6 |
| Gross margin | | 26.0% | | 33.5% | -50.7% | 71.2% | 27.5% | 60.6% |
| Selling, general and administrative [+] | 7.2 | 7.1 | 5.6 | 5.7 | 6.9 | 4.4 | 2.7 | 5.5 |
| General and administrative | 7.2 | 7.1 | 5.6 | 5.7 | 6.9 | | | |
| Research and development | 6.7 | 6.2 | 4.4 | 5.5 | 6.8 | 1.6 | 1.6 | 0.7 |
| Other operating expenses | | 0.0 | 0.1 | | | 0.3 | 0.3 | 0.3 |
| EBITDA [+] | | | -10.2 | -11.0 | | -5.7 | -4.2 | -0.6 |
| EBITDA growth | 5.7% | 28.2% | -7.0% | -23.0% | 150.4% | 37.5% | 583.8% | -86.3% |
| EBITDA margin | | -2563.3% | | -4402.0% | -1284.4% | -1574.4% | -1383.5% | -6.6% |
| Depreciation | | | 0.0 | 0.0 | | 0.0 | 0.0 | 0.0 |
| EBITA | -13.9 | -13.1 | -10.3 | -11.1 | -14.3 | -5.8 | -4.2 | -0.6 |
| EBITA margin | | -2563.3% | | -4421.0% | -1284.4% | -1586.3% | -1394.6% | -6.7% |
| Amortization of intangibles | | | | 0.4 | | 0.3 | 0.3 | 0.3 |
| EBIT [+] | -13.9 | -13.1 | -10.3 | -11.5 | -14.3 | -6.1 | -4.5 | -0.9 |
| EBIT growth | 5.7% | 27.7% | -10.4% | -19.7% | 135.2% | 34.7% | 377.3% | -81.3% |
| EBIT margin | | -2563.3% | | -4588.5% | -1284.4% | -1676.0% | -1503.0% | -10.2% |
| Non-recurring items [+] | | 0.0 | -0.3 | 0.4 | | | | |
| Asset impairment | | | | 0.4 | | | | |
| Loss (gain) on sale of assets | | 0.0 | -0.1 | | | | | |
| Interest expense, net [+] | -0.1 | 0.0 | 0.0 | -0.1 | 0.0 | 0.5 | 0.5 | 0.4 |
| Interest expense | | | | | | 0.5 | 0.5 | 0.5 |
| Interest income | 0.1 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 |
| Other income (expense), net [+] | | 0.0 | -0.1 | | | 1.5 | | |
| Gain (loss) on debt retirement | | | | | | 1.5 | | |
| Pre-tax income | -13.8 | -13.1 | -10.1 | -11.8 | -14.2 | -5.0 | -5.0 | -1.4 |
| Income taxes | -0.2 | -0.2 | -0.1 | -0.2 | 0.0 | 0.0 | 0.0 | 0.0 |
| Tax rate | 1.3% | 1.3% | 0.7% | 1.5% | 0.0% | 0.0% | 0.0% | 0.0% |
| Minority interest | -0.2 | -0.2 | -0.1 | -0.2 | -0.2 | | | |
| Net income | -13.6 | -13.0 | -10.0 | -11.6 | -14.0 | -7.0 | -5.0 | -1.4 |
| Net margin | | -2530.1% | | -4658.8% | -1258.1% | -1935.9% | -1672.1% | -14.9% |
| |
| Basic EPS [+] | ($0.45) | ($0.45) | ($0.45) | ($0.59) | ($0.79) | ($0.58) | ($0.57) | ($0.16) |
| Growth | -1.3% | 0.6% | -23.4% | -25.9% | 38.0% | 0.2% | 264.6% | -85.7% |
| Diluted EPS [+] | ($0.45) | ($0.45) | ($0.45) | ($0.59) | ($0.79) | ($0.58) | ($0.57) | ($0.16) |
| Growth | -1.3% | 0.6% | -23.4% | -25.9% | 38.0% | 0.2% | 264.6% | -85.7% |
| |
| Shares outstanding (basic) [+] | 30.4 | 28.6 | 22.2 | 19.8 | 17.6 | 12.2 | 8.7 | 8.8 |
| Growth | 6.3% | 28.6% | 12.3% | 12.3% | 44.5% | 39.6% | -0.2% | 0.6% |
| Shares outstanding (diluted) [+] | 30.4 | 28.6 | 22.2 | 19.8 | 17.6 | 12.2 | 8.7 | 8.8 |
| Growth | 6.3% | 28.6% | 12.3% | 12.3% | 44.5% | 39.6% | -0.2% | 0.6% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |