| Annual · values | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|
| Gross Margin | 54.47% | 31.48% | 22.86% | — |
| Operating Margin | -34.27% | -25.30% | -79.60% | — |
| EBITDA Margin | -27.67% | -22.84% | -62.67% | — |
| Net Margin | -45.75% | -137.10% | -124.27% | — |
| Current Ratio | — | — | — | — |
| Quick Ratio | — | — | — | — |
| Debt / Equity | -0.41 | -0.04 | -0.06 | -0.01 |
| ROE | 16.46% | 26.59% | 34.99% | — |
| ROA | -4.89% | -43.27% | -77.07% | — |
| Asset Turnover | 0.11 | 0.32 | 0.62 | — |
| Book Value / Share | -2.63 | -12.81 | -65.69 | — |