Financial Summary (All financials)
| In millions, except per share items | Apr-30-20 | Apr-30-19 | Apr-30-18 | Apr-30-17 | Apr-30-16 | Apr-30-15 | Apr-30-14 | Apr-30-13 |
| Revenues | 12.1 | 10.8 | 12.4 | 10.7 | 11.1 | 12.0 | 11.7 | 15.2 |
| Revenue growth | 12.4% | -13.1% | 15.9% | -3.6% | -7.7% | 2.7% | -23.3% | 8.2% |
| Cost of goods sold | 2.1 | 2.2 | 1.6 | 1.7 | 1.7 | 2.2 | 2.2 | 2.3 |
| Gross profit | 10.0 | 8.5 | 10.8 | 9.0 | 9.4 | 9.8 | 9.5 | 13.0 |
| Gross margin | 82.4% | 79.3% | 86.8% | 83.8% | 85.0% | 81.5% | 80.9% | 85.1% |
| Sales and marketing | 3.8 | 4.1 | 4.3 | 3.8 | 4.1 | 4.9 | 5.1 | 4.5 |
| Research and development | 4.4 | 5.5 | 5.5 | 4.8 | 4.7 | 5.7 | 5.5 | 5.5 |
| General and administrative | 2.5 | 4.1 | 3.8 | 3.2 | 3.4 | 4.5 | 4.0 | 4.5 |
| EBITA | -0.8 | -5.2 | -2.8 | -3.0 | -2.8 | -5.3 | -5.2 | -1.4 |
| EBITA margin | -6.6% | -47.9% | -22.5% | -27.6% | -25.6% | -44.5% | -44.5% | -9.3% |
| Amortization of intangibles | 0.0 | 0.0 | 0.0 | 0.0 | | | | 0.0 |
| EBIT | -0.8 | -5.2 | -2.8 | -3.0 | -2.8 | -5.3 | -5.2 | -1.5 |
| EBIT margin | -6.6% | -48.0% | -22.6% | -27.6% | -25.6% | -44.5% | -44.5% | -9.6% |
| Pre-tax income | -1.1 | -5.0 | -3.2 | -2.5 | -2.7 | -4.4 | -5.9 | 0.5 |
| Income taxes | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Tax rate | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | | 0.0% |
| Net income | -1.1 | -5.0 | -3.2 | -2.5 | -2.7 | -4.4 | -5.9 | 0.5 |
| Net margin | -9.1% | -46.6% | -26.0% | -23.0% | -24.3% | -37.0% | -50.6% | 3.1% |
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| Diluted EPS | ($0.18) | ($0.84) | ($0.59) | ($0.52) | ($0.61) | ($1.05) | ($0.14) | $0.01 |
| Shares outstanding (diluted) | 6.0 | 5.9 | 5.5 | 4.7 | 4.4 | 4.2 | 42.1 | 41.6 |
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| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |
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