| In millions, except per share items | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues | 16.6 | 19.0 | 10.1 | 11.6 | 8.6 | 8.4 | 4.6 | 4.0 |
| Revenue growth | -12.4% | 88.6% | -13.0% | 34.5% | 1.9% | 82.6% | 15.5% | -2.3% |
| Cost of goods sold | 0.0 | 0.0 | 5.9 | 3.9 | 2.8 | 2.1 | 1.1 | 1.1 |
| Gross profit | 16.6 | 19.0 | 4.1 | 7.6 | 5.8 | 6.3 | 3.6 | 2.9 |
| Gross margin | 100.0% | 100.0% | 41.0% | 66.0% | 67.5% | 75.1% | 76.9% | 73.3% |
| Selling, general and administrative [+] | 4.0 | 2.3 | 8.3 | 8.1 | 7.0 | 8.7 | 8.7 | 8.2 |
| Sales and marketing | 4.0 | 2.3 | 2.7 | 3.9 | 3.6 | 4.3 | 4.2 | 3.9 |
| General and administrative | | | 5.6 | 4.2 | 3.4 | 4.4 | 4.6 | 4.3 |
| Research and development | | | 3.6 | 3.7 | 4.2 | 2.5 | 0.7 | 1.3 |
| Other operating expenses | 8.7 | 8.1 | | 2.3 | | 4.0 | -0.1 | 3.5 |
| EBITDA [+] | 4.6 | 9.2 | -7.8 | -6.5 | -5.4 | -8.8 | -5.8 | -10.1 |
| EBITDA growth | -50.1% | -217.9% | 19.2% | 21.2% | -38.7% | 51.3% | -42.6% | 113.7% |
| EBITDA margin | 27.6% | 48.4% | -77.4% | -56.5% | -62.7% | -104.3% | -125.9% | -253.2% |
| Depreciation | 0.5 | 0.5 | 0.4 | 0.4 | 0.3 | 0.5 | 0.1 | 0.0 |
| EBITA | 4.0 | 8.7 | -8.2 | -6.9 | -5.7 | -9.3 | -6.0 | -10.1 |
| EBITA margin | 24.3% | 45.6% | -81.6% | -59.7% | -66.8% | -110.2% | -129.1% | -253.3% |
| Amortization of intangibles | 0.2 | 0.2 | 0.2 | 0.1 | 0.0 | 0.2 | 0.2 | 0.4 |
| EBIT [+] | 3.9 | 8.5 | -8.4 | -7.0 | -5.8 | -9.5 | -6.2 | -10.5 |
| EBIT growth | -54.5% | -201.4% | 20.5% | 20.5% | -39.2% | 54.0% | -41.4% | 110.5% |
| EBIT margin | 23.3% | 44.8% | -83.4% | -60.2% | -67.2% | -112.8% | -133.7% | -263.6% |
| Non-recurring items [+] | | | | -2.3 | | -4.0 | 0.1 | -3.5 |
| Asset impairment | | | | -2.3 | | -3.9 | 0.0 | -5.0 |
| Loss (gain) on sale of assets | | | | 0.0 | | | | |
| Unusual expense | | | | | | -0.1 | 0.1 | 1.5 |
| Interest expense, net [+] | 0.0 | 0.0 | 0.2 | 0.2 | 0.2 | 0.1 | 0.0 | 0.0 |
| Interest expense | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | 0.1 | 0.0 | |
| Interest income | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Other income (expense), net [+] | -11.9 | -11.1 | -0.2 | -2.3 | 0.0 | -3.9 | 0.1 | -3.4 |
| Gain (loss) on debt retirement | | | -0.2 | 0.0 | | | | 0.0 |
| Gain (loss) on derivative instruments | | | | | | | 0.0 | 0.1 |
| Gain (loss) on foreign currency transactions | | | 0.0 | 0.0 | 0.0 | 0.0 | | |
| Other | | | -0.4 | -2.6 | | | | |
| Pre-tax income | -8.3 | -2.9 | -8.8 | -7.2 | -5.9 | -9.5 | -6.1 | -10.4 |
| Income taxes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Tax rate | | 0.6% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Net income | -8.3 | -2.9 | -8.8 | -7.2 | -5.9 | -9.5 | -6.1 | -10.4 |
| Net margin | -49.9% | -15.3% | -87.7% | -62.4% | -69.2% | -112.8% | -132.8% | -261.0% |
| |
| Basic EPS [+] | ($0.15) | ($0.06) | ($0.18) | ($0.17) | ($0.16) | ($0.29) | ($0.23) | ($0.49) |
| Growth | 166.4% | -69.6% | 7.9% | 5.3% | -44.0% | 26.2% | -53.3% | -68.8% |
| Diluted EPS [+] | ($0.15) | ($0.06) | ($0.18) | ($0.17) | ($0.16) | ($0.29) | ($0.23) | ($0.49) |
| Growth | 166.4% | -69.6% | 7.9% | 5.3% | -44.0% | 26.2% | -53.3% | -68.8% |
| |
| Shares outstanding (basic) [+] | 55.4 | 51.6 | 47.7 | 42.1 | 36.6 | 32.8 | 26.7 | 21.2 |
| Growth | 7.4% | 8.1% | 13.3% | 15.2% | 11.5% | 22.9% | 25.9% | 99.8% |
| Shares outstanding (diluted) [+] | 55.4 | 51.6 | 47.7 | 42.1 | 36.6 | 32.8 | 26.7 | 21.2 |
| Growth | 7.4% | 8.1% | 13.3% | 15.2% | 11.5% | 22.9% | 25.9% | 99.8% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |