| 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 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues: |
| Outside of United States | 0.3 | 0.2 | 0.2 | | | | | |
| Three Customers | 0.5 | 0.5 | | | | | | |
| Other | | 0.4 | 0.7 | | | | | |
| Total revenues | 0.7 | 1.1 | 0.9 | 7.3 | 4.9 | 29.1 | 27.0 | 18.0 |
| Revenue growth [+] | -42.0% | 32.4% | -88.1% | 48.1% | -83.1% | 7.7% | 49.9% | 76.9% |
| Outside of United States | 29.8% | 32.4% | | | | | | |
| Three Customers | -5.0% | | | | | | | |
| Cost of goods sold | 0.0 | 0.0 | 0.0 | 3.7 | 3.1 | 18.1 | 17.1 | 14.1 |
| Gross profit | 0.7 | 1.1 | 0.9 | 3.6 | 1.8 | 11.1 | 9.9 | 3.9 |
| Gross margin | 100.0% | 100.0% | 100.0% | 49.3% | 37.3% | 37.9% | 36.8% | 21.9% |
| Selling, general and administrative [+] | 8.8 | 8.4 | 2.7 | 6.3 | 7.9 | 24.9 | 20.7 | 19.8 |
| Sales and marketing | 8.8 | 8.4 | 2.7 | 1.1 | 1.2 | 5.0 | 4.7 | 5.3 |
| General and administrative | | | | 5.2 | 6.7 | 19.9 | 16.0 | 14.6 |
| Research and development | 6.8 | 4.3 | 3.2 | | 0.2 | 4.8 | 6.0 | 5.5 |
| Other operating expenses | 1.0 | 1.8 | 1.1 | | | | | |
| EBITDA [+] | -15.4 | -12.8 | -5.6 | -2.1 | -5.4 | -16.5 | -14.3 | -19.7 |
| EBITDA growth | 19.8% | 128.9% | 167.2% | -61.3% | -67.0% | 14.7% | -27.2% | 7.3% |
| EBITDA margin | -2310.8% | -1119.0% | -647.2% | -28.7% | -110.0% | -56.5% | -53.0% | -109.3% |
| Depreciation | 0.5 | -0.2 | -0.1 | 0.2 | 0.3 | 1.8 | 2.0 | 1.5 |
| EBITA | -15.9 | -12.7 | -5.5 | -2.3 | -5.7 | -18.3 | -16.4 | -21.2 |
| EBITA margin | -2389.2% | -1104.8% | -630.9% | -30.9% | -116.3% | -62.7% | -60.6% | -117.6% |
| Amortization of intangibles | | 0.7 | 0.7 | 0.5 | 0.5 | 0.4 | 0.3 | 0.2 |
| EBIT [+] | -15.9 | -13.4 | -6.2 | -2.7 | -6.2 | -18.6 | -16.7 | -21.4 |
| EBIT growth | 18.8% | 116.7% | 127.9% | -56.4% | -66.6% | 11.3% | -21.8% | 11.3% |
| EBIT margin | -2389.2% | -1166.9% | -713.1% | -37.1% | -126.2% | -63.9% | -61.8% | -118.5% |
| Non-recurring items [+] | | 2.3 | 1.4 | 3.0 | 1.5 | | | |
| Asset impairment | | | | 2.9 | | | | |
| Interest expense, net [+] | 0.1 | 0.4 | 0.5 | 1.3 | 0.3 | 2.1 | 0.4 | 0.3 |
| Interest expense | 0.1 | 0.4 | 0.5 | 1.4 | 0.3 | 2.1 | 0.5 | 0.3 |
| Interest income | | | | 0.1 | 0.0 | 0.1 | 0.0 | 0.0 |
| Other income (expense), net [+] | 0.2 | -2.5 | -0.5 | -0.4 | 3.8 | -2.3 | 1.4 | 0.3 |
| Gain (loss) on debt retirement | | -2.5 | | 0.3 | | | | |
| Unrealized gain/loss on derivatives | | 0.2 | | | | -2.0 | 1.5 | 0.0 |
| Change in fair value of warrants | | 0.2 | | | | -2.0 | 1.5 | 0.0 |
| Change in value of contingent liability | | | | 0.0 | 0.1 | 0.0 | 0.2 | 0.3 |
| Write-off of deferred debt issuance costs | | -2.5 | | 0.3 | | | | |
| Other non-ooperating expenses | | | | | | -0.3 | -0.3 | |
| Other | 0.0 | 0.1 | 0.0 | 0.1 | | -0.3 | -0.3 | |
| Pre-tax income | -15.8 | -18.6 | -8.7 | -7.4 | -4.2 | -23.0 | -15.8 | -21.4 |
| Income taxes | 6.9 | 22.3 | 0.0 | -0.5 | 0.0 | -2.1 | 0.0 | -1.2 |
| Tax rate | | | 0.0% | 6.9% | 0.0% | 9.1% | 0.0% | 5.5% |
| Earnings from continuing ops | -8.9 | 3.7 | -8.7 | -6.9 | -4.2 | -20.9 | -15.8 | -20.2 |
| Earnings from discontinued ops | -6.9 | -22.3 | | | | | | |
| Net income | -15.8 | -18.6 | -8.7 | -6.7 | -20.4 | -20.9 | -15.8 | -20.2 |
| Net margin | -2373.4% | -1618.0% | -997.7% | -91.8% | -413.1% | -71.7% | -58.4% | -111.9% |
| |
| Basic EPS [+] | ($1.52) | $0.82 | ($3.48) | ($3.57) | ($4.62) | ($1.01) | ($1.00) | ($1.96) |
| Growth | -285.5% | -123.6% | -2.6% | -22.7% | 357.3% | 1.4% | -49.2% | 11.3% |
| Diluted EPS [+] | ($1.52) | $0.82 | ($3.48) | ($3.57) | ($4.62) | ($1.01) | ($1.00) | ($1.96) |
| Growth | -285.5% | -123.6% | -2.6% | -22.7% | 357.3% | 1.4% | -49.2% | 11.4% |
| |
| Shares outstanding (basic) [+] | 5.9 | 4.5 | 2.5 | 1.9 | 0.9 | 20.7 | 15.9 | 10.3 |
| Growth | 29.7% | 81.9% | 28.9% | 111.9% | -95.6% | 30.3% | 54.0% | 9.0% |
| Shares outstanding (diluted) [+] | 5.9 | 4.5 | 2.5 | 1.9 | 0.9 | 20.7 | 15.9 | 10.3 |
| Growth | 29.7% | 82.0% | 28.9% | 111.9% | -95.6% | 30.3% | 54.0% | 8.8% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |