In millions, except per share items | Dec-31-13 | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 | Dec-31-06 |
| 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
Net revenues | 104.5 | 100.2 | 111.2 | 115.5 | 82.8 | 81.1 | 81.7 | 81.4 |
Net revenues growth | 4.2% | -9.8% | -3.8% | 39.5% | 2.2% | -0.8% | 0.4% | 49.1% |
Cost of revenues | 45.4 | 41.5 | 46.6 | 47.8 | 35.9 | 32.8 | 32.2 | 33.8 |
Gross margin | 59.1 | 58.8 | 64.6 | 67.8 | 46.9 | 48.3 | 49.5 | 47.6 |
Gross margin | 56.6% | 58.6% | 58.1% | 58.7% | 56.7% | 59.6% | 60.6% | 58.5% |
|
Operating expenses: | | | | | | | | |
Research and development | 24.9 | 27.5 | 28.2 | 30.8 | 31.4 | 27.1 | 24.4 | 20.2 |
Selling, general and administrative | 26.4 | 28.9 | 28.0 | 26.7 | 24.7 | 23.4 | 24.5 | 23.8 |
Total operating expenses | 103.2 | 63.6 | 126.4 | 124.0 | 62.4 | 106.2 | 50.2 | 45.9 |
Income (loss) from operations | 7.5 | -4.8 | 6.0 | 6.8 | -15.5 | -57.9 | -0.6 | 1.7 |
Operating margin | 7.2% | -4.8% | 5.4% | 5.9% | -18.7% | -71.5% | -0.8% | 2.1% |
Interest income (expense) and other, net | 0.0 | 0.0 | -0.1 | 0.0 | 0.2 | | 0.0 | 0.0 |
Income (loss) from continuing operations before provision for income taxes | 7.4 | -5.0 | 5.9 | 6.9 | -19.0 | -56.4 | 1.8 | 3.5 |
Provision (benefit) for income taxes | 0.2 | 0.2 | 2.8 | 2.2 | -0.2 | 0.1 | 0.6 | 0.5 |
Tax rate | 3.1% | | 47.0% | 32.5% | 1.0% | | 33.0% | 14.6% |
Income (loss) from continuing operations, net of tax | 7.1 | -5.2 | 3.1 | 4.6 | -18.8 | -56.5 | 1.2 | 3.0 |
Loss from discontinued operations, net of tax | 0.2 | -27.4 | -27.9 | -7.9 | | | | |
Net income (loss) | 7.3 | -32.6 | -24.8 | -3.3 | -18.8 | -56.5 | 1.2 | 3.0 |
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Basic net income (loss) per share: | | | | | | | | |
Income (loss) from continuing operations | 0.0 | 0.0 | 0.0 | 0.0 | | | | |
|
Loss from discontinued operations | | | | | | | | |
Net income (loss) | $0.16 | ($0.73) | ($0.56) | ($0.08) | ($0.53) | ($2.00) | $0.04 | $0.11 |
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Diluted net income (loss) per share: | | | | | | | | |
Income (loss) from continuing operations | 0.0 | 0.0 | 0.0 | 0.0 | | | | |
|
Loss from discontinued operations | | | | | | | | |
Net income (loss) | $0.15 | ($0.73) | ($0.55) | ($0.08) | ($0.53) | ($2.00) | $0.04 | $0.10 |
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Shares used to compute basic per share amounts | 45.6 | 44.9 | 44.6 | 38.9 | 35.7 | 28.3 | 29.4 | 27.3 |
Shares used to compute diluted per share amounts | 46.5 | 44.9 | 45.0 | 39.6 | 35.7 | 28.3 | 29.4 | 30.1 |