| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| | 10-K | 10-K | 10-K/A | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues [+] | 12.5 | 12.9 | 12.7 | 0.5 | 1.6 | 0.4 | 0.1 | 0.2 |
| Products | | | | | | | | 0.2 |
| Revenue growth | -3.1% | 1.8% | 2222.1% | -65.0% | 248.9% | 240.5% | -46.3% | -61.4% |
| Cost of goods sold | 0.0 | 0.0 | 18.1 | 3.6 | 3.5 | 3.4 | 3.4 | 3.0 |
| Gross profit | 12.5 | 12.9 | -5.4 | -3.0 | -1.9 | -3.0 | -3.3 | -2.8 |
| Gross margin | 100.0% | 100.0% | -43.0% | -553.6% | -122.0% | -663.0% | -2529.0% | -1131.1% |
| Selling, general and administrative [+] | 22.4 | 29.9 | 5.5 | 3.9 | 4.0 | 4.1 | 5.1 | 5.8 |
| Sales and marketing | 5.0 | 7.4 | | | | | | |
| General and administrative | 17.4 | 22.5 | | | | | | |
| Other selling, general and administrative | 5.0 | 7.4 | | | | | | |
| Research and development | | | 1.7 | 2.4 | 2.4 | 2.6 | 2.8 | 4.1 |
| Equity in earnings | | | | | | | | |
| Other operating expenses | 1.5 | 1.4 | | | | | | |
| EBITDA [+] | -11.4 | -18.4 | -12.7 | -8.5 | -7.2 | -7.8 | -9.1 | -10.3 |
| EBITDA growth | -38.2% | 44.5% | 50.0% | 17.5% | -7.3% | -14.6% | -11.3% | 31.0% |
| EBITDA margin | -90.9% | -142.5% | -100.4% | -1553.8% | -463.2% | -1743.9% | -6949.6% | -4207.0% |
| Depreciation | 0.5 | 0.5 | 0.6 | 0.8 | 1.0 | 1.8 | 2.1 | 2.4 |
| EBITA | -11.9 | -18.9 | -13.3 | -9.3 | -8.2 | -9.6 | -11.2 | -12.6 |
| EBITA margin | -94.9% | -146.6% | -105.1% | -1704.2% | -528.5% | -2158.5% | -8522.9% | -5183.6% |
| Amortization of intangibles | | | | | | 0.0 | 0.1 | 0.1 |
| EBIT [+] | -11.9 | -18.9 | -13.3 | -9.3 | -8.2 | -9.7 | -11.2 | -12.7 |
| EBIT growth | -37.2% | 42.0% | 43.2% | 13.0% | -14.9% | -14.1% | -11.6% | 38.8% |
| EBIT margin | -94.9% | -146.6% | -105.1% | -1704.2% | -528.5% | -2166.6% | -8582.4% | -5214.3% |
| Non-recurring items [+] | | 7.5 | | | | | | |
| Asset impairment | | 7.5 | | | | | | |
| Interest expense | 3.7 | 1.4 | 0.4 | | | | | |
| Interest expense | 3.7 | 1.4 | 0.4 | | | | | |
| Other income (expense), net [+] | 1.1 | 5.7 | -1.2 | 0.1 | 0.1 | 0.1 | 0.1 | 4.1 |
| Gain (loss) on sale of assets | -0.2 | -1.2 | | | | | | |
| Gain (loss) on debt retirement | 1.6 | | | | | | | |
| Gain (loss) on derivative instruments | | | | | | 0.1 | 0.2 | 4.9 |
| Change in fair value of warrants | | | | | 0.0 | | -0.1 | -0.5 |
| Other non-operating income | | | | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 |
| Other non-ooperating expenses | | | | | | | | -0.2 |
| Other | 0.6 | 3.0 | 0.2 | 0.1 | 0.1 | 0.0 | 0.0 | -0.2 |
| Pre-tax income | -14.5 | -22.0 | -14.9 | -9.2 | -8.1 | -9.5 | -11.1 | -8.6 |
| Income taxes | 0.2 | -2.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Tax rate | | 11.3% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Minority interest | 0.2 | -0.2 | 2.0 | | | | | |
| Earnings from continuing ops | -20.9 | -28.0 | -23.8 | -9.2 | -8.1 | -9.5 | -11.1 | -8.6 |
| Earnings from discontinued ops | | 2.5 | 1.1 | | | | | |
| Net income | -20.9 | -25.6 | -22.7 | -9.2 | -8.1 | -9.5 | -11.1 | -8.6 |
| Net margin | -167.6% | -198.5% | -179.6% | -1693.4% | -522.6% | -2136.1% | -8485.5% | -3525.4% |
| |
| Basic EPS [+] | ($1.20) | ($2.03) | ($1.93) | ($12.33) | ($40.32) | ($9.05) | ($35.31) | ($6.55) |
| Growth | -41.2% | 5.6% | -84.4% | -69.4% | 345.4% | -74.4% | 439.2% | -32.3% |
| Diluted EPS [+] | ($1.20) | ($2.03) | ($1.93) | ($12.33) | ($40.32) | ($9.05) | ($35.31) | ($6.55) |
| Growth | -41.2% | 5.6% | -84.4% | -69.4% | 345.4% | -74.4% | 439.2% | -32.3% |
| |
| Shares outstanding (basic) [+] | 17.5 | 13.8 | 12.4 | 0.7 | 0.2 | 1.1 | 0.3 | 1.3 |
| Growth | 27.0% | 11.5% | 1552.8% | 271.2% | -80.8% | 234.3% | -76.0% | 54.0% |
| Shares outstanding (diluted) [+] | 17.5 | 13.8 | 12.4 | 0.7 | 0.2 | 1.1 | 0.3 | 1.3 |
| Growth | 27.0% | 11.5% | 1552.8% | 271.2% | -80.8% | 234.3% | -76.0% | 54.0% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |