| In millions, except per share items | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues [+] | 0.0 | 2.0 | 6.6 | 0.0 | 0.0 | 0.0 | 0.1 | 5.7 |
| Grants | | | | | | | 0.1 | |
| Net interest income | | 0.0 | 0.0 | | | | | |
| Revenue growth | -100.0% | -69.3% | | | | -100.0% | -98.6% | 2884.4% |
| Cost of goods sold | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 5.7 |
| Gross profit | 0.0 | 2.0 | 6.6 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 |
| Gross margin | | 100.0% | 100.0% | | | | 100.0% | 0.2% |
| Selling, general and administrative [+] | 5.4 | 5.6 | 4.9 | 4.4 | 2.4 | 4.1 | 6.8 | 1.7 |
| General and administrative | 5.4 | 5.6 | 4.9 | 4.4 | 2.4 | 4.1 | 6.8 | 1.7 |
| Research and development | 8.8 | 6.0 | 4.0 | 4.7 | 5.8 | 101.7 | 47.3 | 4.1 |
| Equity in earnings | | | | | | | | |
| Other operating expenses | | | | 0.1 | 0.1 | | | 0.6 |
| EBITDA [+] | -14.0 | -9.4 | -2.2 | -9.0 | -8.3 | -105.6 | -53.8 | -6.2 |
| EBITDA growth | 48.8% | 327.6% | -75.6% | 9.3% | -92.2% | 96.5% | 769.3% | 60.8% |
| EBITDA margin | | -468.2% | -33.6% | | | | -68917.9% | -107.9% |
| Depreciation and amortization | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 |
| EBIT [+] | -14.2 | -9.6 | -2.3 | -9.1 | -8.4 | -105.8 | -53.9 | -6.4 |
| EBIT growth | 48.4% | 316.2% | -74.6% | 8.6% | -92.1% | 96.1% | 745.2% | 56.4% |
| EBIT margin | | -476.0% | -35.1% | | | | -69164.1% | -111.4% |
| Non-recurring items [+] | | | 46.1 | 53.8 | -0.1 | | | -0.6 |
| Asset impairment | | | 46.1 | 53.9 | | | | |
| Loss (gain) on sale of assets | | | | -0.1 | -0.1 | | | -0.6 |
| Interest income, net [+] | 0.0 | 0.0 | 0.0 | -0.1 | 0.0 | 0.1 | 0.2 | 0.1 |
| Interest expense | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | | | |
| Interest income | | | | | | 0.1 | 0.2 | 0.1 |
| Other income (expense), net [+] | 0.0 | -0.1 | 0.3 | 0.4 | 0.8 | 1.4 | -11.6 | 5.6 |
| Gain (loss) on sale of assets | | | | | | | -1.7 | |
| Gain (loss) on debt retirement | | | | 0.1 | | | | |
| Gain (loss) on derivative instruments | 0.0 | -0.1 | 0.3 | 0.3 | 0.9 | 2.6 | -9.9 | |
| Gain (loss) on foreign currency transactions | 0.0 | | | | | | | |
| Change in fair value of warrants | | | | | | | | -0.9 |
| Other | | | | | | | | 5.6 |
| Pre-tax income | -14.2 | -9.6 | -48.2 | -62.6 | -7.5 | -104.3 | -65.4 | -0.2 |
| Income taxes | 0.0 | 0.0 | 0.0 | -13.6 | -6.9 | -29.4 | -15.2 | -0.1 |
| Tax rate | 0.0% | 0.0% | 0.0% | 21.7% | 91.8% | 28.2% | 23.3% | 34.4% |
| Net income | -14.2 | -9.6 | -48.2 | -49.0 | -0.6 | -74.9 | -50.1 | -0.1 |
| Net margin | | -479.0% | -733.8% | | | | -64259.0% | -1.7% |
| |
| Basic EPS [+] | ($0.16) | ($0.17) | ($1.51) | ($1.75) | ($0.03) | ($3.18) | ($2.39) | $0.00 |
| Growth | -8.1% | -88.4% | -13.7% | 6792.1% | -99.2% | 33.5% | 787309.4% | -99.6% |
| Diluted EPS [+] | ($0.16) | ($0.17) | ($1.51) | ($1.75) | ($0.03) | ($3.18) | ($2.39) | $0.00 |
| Growth | -8.1% | -88.4% | -13.7% | 6792.1% | -99.2% | 33.4% | 789656.4% | -99.6% |
| |
| Shares outstanding (basic) [+] | 88.4 | 55.2 | 31.9 | 28.0 | 24.1 | 23.5 | 21.0 | 326.8 |
| Growth | 60.0% | 73.3% | 13.7% | 16.1% | 2.6% | 11.9% | -93.6% | 470.7% |
| Shares outstanding (diluted) [+] | 88.4 | 55.2 | 31.9 | 28.0 | 24.1 | 23.5 | 21.0 | 327.8 |
| Growth | 60.0% | 73.3% | 13.7% | 16.1% | 2.5% | 12.0% | -93.6% | 472.4% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |