Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues	$ 43,799	$ 68,178
Cost of sales:
Cost of sales	30,597	46,306
Amortization of purchased technology	2,054	2,217
Total cost of sales	32,651	48,523
Gross margin	11,148	19,655
Research and development	8,419	11,535
Selling, general and administrative	9,596	11,096
Intangible asset amortization	1,297	1,304
Restructuring and acquisition-related charges, net	1,300	1,270
Income (loss) from operations	(9,464)	(5,550)
Interest expense	(287)	(332)
Other income (expense), net	179	147
Income (loss) before income tax expense (benefit)	(9,572)	(5,735)
Income tax expense (benefit)	862	822
Net income (loss)	$ (10,434)	$ (6,557)
Net income (loss) per share:
Basic (in dollars per share)	$ (0.35)	$ (0.23)
Diluted (in dollars per share)	$ (0.35)	$ (0.23)	[1],[2],[3],[4]
Weighted average shares outstanding:
Basic (in shares)	29,864	28,470
Diluted (in shares)	29,864	28,470

[1] For the three months ended March 31, 2014 and 2013, 2.1 million and 2.8 million as-if converted shares associated with the Company's convertible senior notes were excluded from the calculation as their effect would have been anti-dilutive.

[2] (A)For the three months ended March 31, 2014 there were no remaining contingently issuable shares outstanding. For the three months ended March 31, 2013, 0.1 million contingently issuable shares were excluded from the calculation as their effect would have been anti-dilutive.

[3] under the Long-Term Incentive Plan ("LTIP") are presented based on attainment of 100% of the performance goals being met. The LTIP provides for the grants of awards payable in shares of common stock upon the achievement of performance goals set by the Company's Compensation and Development Committee. In addition to the performance conditions, the awards contain market-based multipliers based on the average price of the Company's common stock thirty days prior to the end of each semi-annual performance period. The maximum multiplier for a given semi-annual performance period is 2.75x the original grant and overall achievement is limited to a maximum of 2.5x of the target award over the entire performance period. Based on this formula, the maximum number of shares that could be earned was 1.8 million and 2.1 million for the three months ended March 31, 2014 and 2013

[4] For the three months ended March 31, 2014 and 2013, the following equity awards, by type, were excluded from the calculation, as their effect would have been anti-dilutive (in thousands): Three Months Ended March 31, 2014 2013Stock options3,188 2,892Restricted stock units282 488Performance based restricted stock units (D)674 985Total equity award shares excluded4,144 4,365