| In millions, except per share items | Mar-31-19 | Sep-30-18 | Jun-30-18 | Mar-31-18 | Dec-31-17 | Sep-30-17 | Jun-30-17 | Mar-31-17 |
| | 10-Q | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
| Total revenues | 15.4 | 33.7 | 29.5 | 23.0 | 30.8 | 35.8 | 37.1 | 26.7 |
| Revenue growth | -32.9% | -5.8% | -20.6% | -13.8% | 16.5% | 40.4% | 8.7% | -24.2% |
| Cost of goods sold | 17.0 | 27.4 | 24.0 | 19.7 | 23.2 | 28.5 | 29.4 | 20.6 |
| Gross profit | -1.5 | 6.4 | 5.4 | 3.3 | 7.6 | 7.3 | 7.8 | 6.1 |
| Gross margin | -9.9% | 18.9% | 18.4% | 14.4% | 24.7% | 20.4% | 20.9% | 22.9% |
| Selling, general and administrative [+] | 9.7 | 9.1 | 9.8 | 7.8 | 9.5 | 14.6 | 12.1 | 9.6 |
| General and administrative | | | | | 9.5 | | | |
| Research and development | 5.2 | 5.6 | 5.5 | 4.9 | 4.3 | 4.9 | 4.4 | 4.7 |
| EBITDA [+] | -14.3 | -5.9 | -7.6 | -7.4 | -3.8 | -9.6 | -6.4 | -6.0 |
| EBITDA growth | 93.0% | -38.2% | 19.3% | 22.8% | -39.1% | 188.5% | -20.4% | 74.4% |
| EBITDA margin | -92.8% | -17.6% | -25.7% | -32.3% | -12.3% | -26.9% | -17.1% | -22.6% |
| Depreciation | 1.8 | 2.0 | 2.0 | 1.6 | 2.1 | 2.2 | 2.3 | 2.1 |
| EBITA | -16.1 | -8.0 | -9.6 | -9.1 | -5.9 | -11.9 | -8.6 | -8.2 |
| EBITA margin | -104.2% | -23.6% | -32.6% | -39.4% | -19.2% | -33.1% | -23.2% | -30.7% |
| Amortization of intangibles | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | |
| EBIT [+] | -16.4 | -8.3 | -9.9 | -9.4 | -6.2 | -12.2 | -8.8 | -8.2 |
| EBIT growth | 74.9% | -31.8% | 12.4% | 14.4% | -28.2% | 110.1% | -14.9% | 35.3% |
| EBIT margin | -106.2% | -24.6% | -33.6% | -40.7% | -20.2% | -33.9% | -23.8% | -30.7% |
| Non-recurring items | | 0.0 | 0.1 | -0.1 | 0.3 | 1.3 | | 1.0 |
| Interest expense, net [+] | -1.1 | 1.3 | 1.0 | -1.1 | 1.0 | 0.2 | 0.1 | 0.1 |
| Interest expense | | 1.3 | 1.0 | | 1.0 | 0.2 | 0.1 | 0.1 |
| Interest income | 1.1 | | | 1.1 | | | | |
| Other income (expense), net [+] | -2.4 | 0.1 | 0.0 | -2.1 | -0.7 | 0.2 | 0.2 | 0.1 |
| Gain (loss) on foreign currency transactions | 0.2 | 0.1 | 0.2 | 0.1 | 0.3 | -0.1 | 0.0 | 0.1 |
| Other non-operating income | | | 0.0 | | -0.1 | | -0.1 | 0.0 |
| Other | -0.1 | 0.0 | 0.0 | -0.1 | -0.2 | 0.0 | -0.1 | 0.0 |
| Pre-tax income | -17.6 | -9.4 | -11.0 | -10.4 | -8.2 | -13.3 | -8.7 | -9.2 |
| Income taxes | 0.0 | 0.4 | 0.3 | 0.1 | 0.5 | 0.5 | 1.4 | 1.2 |
| Tax rate | | | | | | | | |
| Net income | -17.6 | -9.7 | -11.3 | -9.2 | -8.8 | -13.9 | -10.1 | -10.4 |
| Net margin | -114.1% | -28.8% | -38.4% | -40.0% | -28.4% | -38.7% | -27.3% | -39.0% |
| |
| Basic EPS [+] | ($0.38) | ($0.23) | ($0.30) | ($0.28) | ($0.25) | ($0.37) | ($0.28) | ($0.32) |
| Growth | 36.0% | -38.9% | 4.2% | -13.2% | -35.4% | 74.8% | -518.5% | 49.3% |
| Diluted EPS [+] | ($0.38) | ($0.23) | ($0.30) | ($0.28) | ($0.25) | ($0.37) | ($0.28) | ($0.32) |
| Growth | 36.0% | -38.9% | 4.2% | -13.2% | -35.4% | 74.8% | -520.9% | 49.3% |
| |
| Shares outstanding (basic) [+] | 46.2 | 42.5 | 38.1 | 37.5 | 35.5 | 37.0 | 35.5 | 32.2 |
| Growth | 23.2% | 14.8% | 7.2% | 16.5% | 11.3% | 15.7% | 11.6% | 1.7% |
| Shares outstanding (diluted) [+] | 46.2 | 42.5 | 38.1 | 37.5 | 35.5 | 37.0 | 35.5 | 32.2 |
| Growth | 23.2% | 14.8% | 7.2% | 16.5% | 11.3% | 15.7% | 10.9% | 1.7% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |