| 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 |
| | S-1/A | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues: |
| Revenue Recognized at a Point in Time | | | | | 39.7 | 39.8 | | |
| United States | | 25.4 | 16.2 | 22.8 | 28.7 | 29.3 | 33.2 | 29.4 |
| Other | | 13.8 | 6.6 | 15.0 | | | 18.7 | 19.0 |
| Total revenues | 48.5 | 39.2 | 22.8 | 37.8 | 46.2 | 46.9 | 51.8 | 48.5 |
| Revenue growth [+] | 23.7% | 72.0% | -39.7% | -18.1% | -1.6% | -9.4% | 6.9% | 1.7% |
| Revenue Recognized at a Point in Time | | | | | -0.2% | | | |
| United States | | 56.7% | -29.0% | -20.4% | -2.2% | -11.6% | 12.7% | -1.4% |
| International | | 109.6% | -56.1% | -14.3% | -0.8% | -5.5% | -2.1% | 6.9% |
| Cost of goods sold | 32.6 | 22.7 | 16.6 | 23.5 | 29.3 | 31.8 | 31.5 | 32.5 |
| Gross profit | 15.9 | 16.5 | 6.2 | 14.3 | 16.9 | 15.1 | 20.3 | 16.0 |
| Gross margin | 32.8% | 42.2% | 27.1% | 37.8% | 36.6% | 32.2% | 39.2% | 32.9% |
| Selling, general and administrative [+] | -32.6 | 15.3 | 11.2 | 14.4 | 29.9 | 26.4 | 27.5 | 29.0 |
| Sales and marketing | | 15.3 | 11.2 | 14.4 | 18.1 | 16.7 | 17.0 | 18.7 |
| General and administrative | | | | | 11.8 | 9.7 | 10.5 | 10.3 |
| Research and development | | | | | 5.2 | 6.2 | 7.8 | 7.3 |
| Other operating expenses | 73.8 | 17.6 | 21.7 | 15.5 | | | | 0.4 |
| EBITDA [+] | | -16.0 | -26.3 | -14.6 | -17.3 | -16.3 | -13.9 | -19.8 |
| EBITDA growth | 58.1% | -39.0% | 79.4% | -15.2% | 5.7% | 17.4% | -29.6% | 14.6% |
| EBITDA margin | -52.3% | -40.9% | -115.3% | -38.7% | -37.4% | -34.8% | -26.9% | -40.8% |
| Depreciation | | 0.4 | 0.5 | 1.0 | 0.9 | 1.2 | 1.0 | 0.8 |
| EBITA | -25.3 | -16.4 | -26.8 | -15.6 | -18.2 | -17.5 | -14.9 | -20.6 |
| EBITA margin | -52.3% | -41.9% | -117.5% | -41.3% | -39.4% | -37.4% | -28.8% | -42.5% |
| Amortization of intangibles | | | | | | | 0.1 | 0.1 |
| EBIT [+] | -25.3 | -16.4 | -26.8 | -15.6 | -18.2 | -17.5 | -15.0 | -20.6 |
| EBIT growth | 54.2% | -38.6% | 71.3% | -14.2% | 3.8% | 17.2% | -27.5% | 15.1% |
| EBIT margin | -52.3% | -41.9% | -117.5% | -41.3% | -39.4% | -37.4% | -28.9% | -42.6% |
| Non-recurring items [+] | | | | | 2.7 | 0.5 | | -0.7 |
| Loss (gain) on sale of assets | | | | | 1.2 | 0.5 | | |
| Legal settlement | | | | | 1.5 | | | -0.7 |
| Interest expense, net [+] | | | | | 0.5 | 0.0 | -0.1 | -0.1 |
| Interest expense | | | | | 0.5 | | | |
| Interest income | | | | | | 0.0 | 0.1 | 0.1 |
| Other income (expense), net [+] | -3.2 | 0.3 | 10.1 | -2.3 | -0.1 | 0.6 | -0.3 | -0.3 |
| Gain (loss) on foreign currency transactions | | | | | 0.1 | 0.6 | -0.3 | -0.3 |
| Other non-operating gains/losses | | | 4.2 | | | | | |
| Other | | | 4.2 | | | | | |
| Pre-tax income | -28.5 | -16.1 | -16.7 | -17.9 | -21.5 | -17.4 | -15.2 | -20.1 |
| Income taxes | 0.0 | 0.1 | 0.1 | 0.0 | 0.1 | -0.6 | 0.2 | 0.2 |
| Tax rate | 0.0% | | | 0.2% | | 3.3% | | |
| Net income | -28.9 | -16.2 | -16.8 | -17.9 | -21.5 | -20.8 | -17.6 | -20.3 |
| Net margin | -59.5% | -41.2% | -73.9% | -47.2% | -46.6% | -44.4% | -33.9% | -41.8% |
| |
| Basic EPS [+] | ($4.16) | ($0.11) | ($0.56) | ($0.77) | ($1.05) | ($1.41) | ($1.45) | ($0.35) |
| Growth | 3681.8% | -80.4% | -27.3% | -26.3% | -26.0% | -2.4% | 315.2% | -22.2% |
| Diluted EPS [+] | ($4.16) | ($0.11) | ($0.56) | ($0.77) | ($1.05) | ($1.41) | ($1.45) | ($0.35) |
| Growth | 3681.8% | -80.4% | -27.3% | -26.3% | -26.0% | -2.4% | 315.2% | -22.2% |
| |
| Shares outstanding (basic) [+] | 6.9 | 146.9 | 30.1 | 23.2 | 20.6 | 14.8 | 12.1 | 58.2 |
| Growth | -95.3% | 388.8% | 29.6% | 12.6% | 39.6% | 21.6% | -79.1% | 37.8% |
| Shares outstanding (diluted) [+] | 6.9 | 146.9 | 30.1 | 23.2 | 20.6 | 14.8 | 12.1 | 58.2 |
| Growth | -95.3% | 388.8% | 29.6% | 12.6% | 39.6% | 21.6% | -79.1% | 37.8% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |