| In millions, except per share items | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 |
| Revenues | 212.1 | 155.0 | 155.0 | 129.0 | 113.5 | 126.0 | 172.4 | 209.4 |
| Revenue growth | 36.9% | -0.1% | 20.2% | 13.7% | -9.9% | -26.9% | -17.7% | 0.9% |
| Cost of goods sold | 143.8 | 92.6 | 91.2 | 78.1 | 67.5 | 71.3 | 69.6 | 61.2 |
| Gross profit | 68.3 | 62.3 | 63.9 | 50.9 | 45.9 | 54.7 | 102.8 | 148.3 |
| Gross margin | 32.2% | 40.2% | 41.2% | 39.5% | 40.5% | 43.4% | 59.6% | 70.8% |
| Sales and marketing | 35.1 | 31.7 | 32.8 | 28.3 | 26.7 | 21.0 | 20.6 | 36.3 |
| Research and development | 18.8 | 20.9 | 20.2 | 18.6 | 20.0 | 26.3 | 37.7 | 32.2 |
| General and administrative | 29.8 | 33.4 | 30.2 | 29.6 | 30.7 | 35.4 | 41.1 | 53.0 |
| EBITA | -15.4 | -23.7 | -19.3 | -25.6 | -31.4 | -28.1 | 3.4 | 27.6 |
| EBITA margin | -7.2% | -15.3% | -12.4% | -19.9% | -27.7% | -22.3% | 2.0% | 13.2% |
| Amortization of intangibles | 2.5 | 3.4 | 4.1 | 5.7 | 10.9 | 18.7 | 38.3 | 36.5 |
| EBIT | -17.8 | -27.0 | -23.3 | -31.3 | -42.3 | -46.8 | -34.9 | -8.9 |
| EBIT margin | -8.4% | -17.5% | -15.0% | -24.3% | -37.3% | -37.1% | -20.2% | -4.3% |
| Pre-tax income | -8.7 | -26.8 | -23.1 | -31.2 | -2.0 | -43.4 | -270.9 | -11.4 |
| Income taxes | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.1 | -14.7 | 2.9 |
| Tax rate | | | | 0.1% | 0.5% | | 5.4% | |
| Earnings from continuing ops | -8.9 | -26.8 | -23.2 | -31.1 | -2.0 | -43.5 | -256.1 | -14.2 |
| Earnings from discontinued ops | | | | | | | -11.2 | -6.0 |
| Net income | -8.9 | -26.8 | -23.2 | -31.1 | -2.0 | -43.5 | -267.4 | -20.2 |
| Net margin | -4.2% | -17.3% | -15.0% | -24.1% | -1.8% | -34.5% | -155.1% | -9.6% |
| |
| Diluted EPS | ($0.32) | ($1.03) | ($0.94) | ($1.52) | ($0.10) | ($2.18) | ($13.66) | ($0.80) |
| Shares outstanding (diluted) | 27.3 | 26.0 | 24.6 | 20.5 | 20.2 | 19.9 | 18.7 | 17.7 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |