| 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 | 10-K/A | 10-K | 10-K/A | 10-K | 10-K |
| Revenues | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 |
| Revenue growth | | | | | | -100.0% | -37.3% | 55.1% |
| Cost of goods sold | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 |
| Gross profit | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Gross margin | | | | | | | 0.0% | 0.0% |
| Selling, general and administrative [+] | 0.7 | 0.6 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| General and administrative | 0.7 | 0.6 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Other operating expenses [+] | 0.6 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 |
| Exploration expenses | 0.6 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | | |
| EBITDA [+] | | | | | | | | |
| Depreciation and amortization | | | | | | | | |
| EBIT [+] | -1.3 | -0.8 | -0.3 | -0.2 | -0.2 | -0.1 | -0.1 | -0.3 |
| EBIT growth | 72.7% | 171.5% | 78.5% | -5.9% | 20.1% | 56.3% | -65.8% | 64.4% |
| EBIT margin | | | | | | | -61.8% | -113.4% |
| Non-recurring items [+] | | | | | 0.1 | 1.9 | 0.1 | 0.0 |
| Asset impairment | | | | | 0.1 | 1.9 | | |
| Interest expense | 0.0 | 0.0 | -0.1 | | 0.1 | 0.1 | | |
| Interest expense | 0.0 | 0.0 | -0.1 | | 0.1 | 0.1 | | |
| Other income (expense), net [+] | 0.6 | -0.3 | -0.2 | -0.1 | 0.0 | 0.0 | -0.1 | -0.1 |
| Gain (loss) on debt retirement | | 0.0 | | | | | | |
| Gain (loss) on derivative instruments | 0.6 | -0.3 | | | | | | |
| Unrealized gain/loss on derivatives | | | | | 0.0 | 0.0 | | |
| Other | | | | | | | | -0.1 |
| Pre-tax income | -0.7 | -1.0 | -0.4 | -0.3 | -0.3 | -2.1 | -0.3 | -0.3 |
| Income taxes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Tax rate | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Net income | -0.7 | -1.0 | -0.4 | -0.3 | -0.3 | -2.1 | -0.3 | -0.3 |
| Net margin | | | | | | | -198.1% | -131.9% |
| |
| Basic EPS [+] | ($0.01) | ($0.02) | ($0.01) | ($0.01) | ($0.01) | ($0.06) | ($0.01) | ($0.01) |
| Growth | -65.7% | 41.5% | 51.5% | -7.9% | -86.5% | 650.1% | -5.9% | 54.1% |
| Diluted EPS [+] | ($0.01) | ($0.02) | ($0.01) | ($0.01) | ($0.01) | ($0.06) | ($0.01) | ($0.01) |
| Growth | -65.7% | 41.5% | 51.5% | -7.9% | -86.5% | 650.1% | -5.9% | 54.1% |
| |
| Shares outstanding (basic) [+] | 127.6 | 65.9 | 37.1 | 36.5 | 36.4 | 36.2 | 36.2 | 36.2 |
| Growth | 93.6% | 77.5% | 1.6% | 0.3% | 0.6% | 0.0% | 0.0% | 0.5% |
| Shares outstanding (diluted) [+] | 127.6 | 65.9 | 37.1 | 36.5 | 36.4 | 36.2 | 36.2 | 36.2 |
| Growth | 93.6% | 77.5% | 1.6% | 0.3% | 0.6% | 0.0% | 0.0% | 0.5% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |