Overview Financials News + Filings Key Docs Charts Ownership Insiders
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| In millions, except per share items | Nov-30-21 | Nov-30-20 | Nov-30-19 | Nov-30-18 | Nov-30-17 | Nov-30-16 | Nov-30-15 | Nov-30-14 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Sales | 25.0 | 22.4 | 22.9 | 19.7 | 20.7 | 21.6 | 26.3 | 36.2 |
| Sales growth | 11.4% | -2.1% | 16.0% | -4.8% | -3.9% | -18.1% | -27.2% | 5.7% |
| Cost of goods sold | 18.4 | 20.0 | 19.0 | 16.2 | 16.6 | | | |
| Gross profit | 6.6 | 2.4 | 3.9 | 3.5 | 4.1 | 5.3 | 6.9 | 8.7 |
| Gross margin | 26.4% | 10.7% | 17.2% | 17.8% | 19.7% | 24.7% | 26.3% | 24.1% |
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| Expenses | | | | | | | | |
| Engineering | 0.5 | 0.5 | 0.5 | 0.6 | 0.5 | 0.4 | 0.4 | 0.5 |
| Selling | 2.0 | 1.6 | 1.6 | 1.9 | 1.9 | 1.8 | 2.1 | 2.4 |
| General and administrative | 3.6 | 4.2 | 3.3 | 3.4 | 3.3 | 3.4 | 3.9 | 4.2 |
| Total expenses | 6.1 | 6.3 | 5.4 | 6.6 | 5.8 | 5.8 | 7.0 | 7.1 |
| Income (loss) from operations | 0.5 | -3.9 | -1.5 | -3.1 | -1.7 | -0.4 | -0.1 | 1.7 |
| Operating margin | 2.1% | -17.4% | -6.5% | -15.7% | -8.3% | -2.0% | -0.3% | 4.6% |
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| Other income (expense): | | | | | | | | |
| Interest expense | -0.3 | -0.3 | -0.4 | -0.3 | -0.3 | -0.2 | -0.3 | -0.4 |
| Other | 0.1 | 1.3 | 0.1 | -0.4 | 0.2 | 0.2 | -0.1 | 0.0 |
| Total other income (expense) | -0.3 | 2.2 | -0.3 | -0.8 | 0.2 | 0.1 | -0.4 | -0.4 |
| Income (loss) before income taxes | 0.3 | -3.0 | -1.8 | -3.8 | -1.8 | -0.5 | -0.5 | |
| Income tax expense | 0.1 | -0.9 | -0.3 | -0.5 | -0.4 | -0.1 | -0.2 | 0.4 |
| Net Income (loss) | 0.2 | -2.1 | -1.4 | -3.4 | -1.6 | -0.8 | -0.6 | 0.9 |
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