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Balance Sheet Details (Tables)
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6 Months Ended |
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Jun. 30, 2013
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| Supplemental Balance Sheet Disclosures [Abstract] |
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| Cash , cash equivalents and investments [Table Text Block] |
| | | | | | | | | | June 30,
2013 | | December 31,
2012 | Cash and cash equivalents | $ | 24,718 |
| | $ | 21,810 |
| Short-term investments | 37,084 |
| | 50,265 |
| Long-term investments | 19,453 |
| | 5,181 |
| | $ | 81,255 |
| | $ | 77,256 |
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| Inventory |
Inventory consists of the following: | | | | | | | | | | June 30,
2013 | | December 31,
2012 | Work-in-process | $ | 3,336 |
| | $ | 3,233 |
| Finished goods | 6,019 |
| | 6,658 |
| | $ | 9,355 |
| | $ | 9,891 |
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| Property and Equipment |
Property and equipment consist of the following: | | | | | | | | | | | | Useful Life (in Years) | | June 30,
2013 | | December 31,
2012 | Furniture and fixtures | 5 | | $ | 367 |
| | $ | 355 |
| Machinery and equipment | 3 -5 | | 8,897 |
| | 8,331 |
| Masks and production equipment (1) | 2 | | 4,755 |
| | 4,894 |
| Software | 3 | | 704 |
| | 736 |
| Leasehold improvements | 4 -5 | | 850 |
| | 829 |
| Construction in progress | N/A | | — |
| | 20 |
| | | | 15,573 |
| | 15,165 |
| Less accumulated depreciation and amortization | | | (9,424 | ) | | (8,299 | ) | | | | $ | 6,149 |
| | $ | 6,866 |
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(1) In the three months ended June 30, 2013, the Company recorded an impairment charge of $1.1 million, reflected in cost of net revenue, related to the remaining net book value of production masks that were previously capitalized, but for which future use is no longer expected. |
| Intangible Assets |
Intangible assets consist of the following: | | | | | | | | | | | | Weighted Average Amortization Period (in Years) | | June 30,
2013 | | December 31,
2012 | Licensed technology | 3 | | $ | 2,821 |
| | $ | 1,865 |
| Less accumulated amortization | | | (1,863 | ) | | (1,590 | ) | | | | $ | 958 |
| | $ | 275 |
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| Amortization of Company's Intangible Assets |
The following table presents future amortization of the Company’s intangible assets at June 30, 2013: | | | | | | Amortization | 2013 | $ | 208 |
| 2014 | 319 |
| 2015 | 319 |
| 2016 | 112 |
| Total | $ | 958 |
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| Deferred Revenue and Deferred Profit |
Deferred revenue and deferred profit consist of the following: | | | | | | | | | | June 30,
2013 | | December 31,
2012 | Deferred revenue—rebates | $ | 44 |
| | $ | 23 |
| Deferred revenue—distributor transactions | 3,986 |
| | 3,735 |
| Deferred cost of net revenue—distributor transactions | (1,434 | ) | | (1,469 | ) | | $ | 2,596 |
| | $ | 2,289 |
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| Price Protection Liability [Table Text Block] |
Accrued price protection liability consists of the following activity: | | | | | | | | | | Six Months Ended
June 30, | | 2013 | | 2012 | Beginning balance | $ | 7,880 |
| | $ | 2,840 |
| Charged as a reduction of revenue | 9,922 |
| | 5,692 |
| Payments | (7,125 | ) | | (1,830 | ) | Ending Balance | $ | 10,677 |
| | $ | 6,702 |
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| Accrued Expenses |
Accrued expenses and other current liabilities consist of the following: | | | | | | | | | | June 30,
2013 | | December 31,
2012 | Accrued technology license payments | $ | 3,000 |
| | $ | 2,996 |
| Accrued professional fees | 453 |
| | 386 |
| Accrued litigation costs | 379 |
| | 586 |
| Other | 1,025 |
| | 1,055 |
| | $ | 4,857 |
| | $ | 5,023 |
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