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Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (unaudited) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Revenues: |  |  |  |
Design-to-silicon-yield solutions | $ 14,950,000 | $ 13,793,000 | $ 29,798,000 | $ 27,179,000
Gainshare performance incentives | 9,826,000 | 8,738,000 | 19,088,000 | 15,995,000
Total revenues | 24,776,000 | 22,531,000 | 48,886,000 | 43,174,000
Costs of design-to-silicon-yield solutions: |  |  |  |
Direct costs of design-to-silicon-yield solutions | 9,741,000 | 8,801,000 | 19,398,000 | 17,373,000
Amortization of acquired technology |  | 105,000 |  | 261,000
Total costs of design-to-silicon-yield solutions | 9,741,000 | 8,906,000 | 19,398,000 | 17,634,000
Gross profit | 15,035,000 | 13,625,000 | 29,488,000 | 25,540,000
Operating expenses: |  |  |  |
Research and development | 3,184,000 | 3,291,000 | 6,548,000 | 6,448,000
Selling, general and administrative | 4,404,000 | 4,719,000 | 9,198,000 | 9,624,000
Amortization of other acquired intangible assets | 19,000 | 51,000 | 37,000 | 102,000
Restructuring charges (credits) | 9,000 | 91,000 | (43,000) | 83,000
Total operating expenses | 7,616,000 | 8,152,000 | 15,740,000 | 16,257,000
Income from operations | 7,419,000 | 5,473,000 | 13,748,000 | 9,283,000
Interest and other income (expense), net | (76,000) | 155,000 | 174,000 | 13,000
Income before income taxes | 7,343,000 | 5,628,000 | 13,922,000 | 9,296,000
Income tax provision | 2,791,000 | 808,000 | 4,639,000 | 977,000
Net income | 4,552,000 | 4,820,000 | 9,283,000 | 8,319,000
Net income per share: |  |  |  |
Basic (in Dollars per share) | $ 0.15 | $ 0.17 | $ 0.31 | $ 0.29
Diluted (in Dollars per share) | $ 0.15 | $ 0.16 | $ 0.30 | $ 0.28
Weighted average common shares: |  |  |  |
Basic (in Shares) | 29,650 | 28,560 | 29,501 | 28,472
Diluted (in Shares) | 31,154 | 29,560 | 30,985 | 29,303
Net income | 4,552,000 | 4,820,000 | 9,283,000 | 8,319,000
Other comprehensive income: |  |  |  |
Foreign currency translation adjustments, net of tax | 182,000 | (457,000) | 13,000 | (267,000)
Reclassification adjustment for other-than-temporary impairment on auction-rate-securities recognized in earnings |  | 216,000 |  | 216,000
Comprehensive income | $ 4,734,000 | $ 4,579,000 | $ 9,296,000 | $ 8,268,000

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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 4 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6386349&loc=d3e3636-108311 + Details
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1505-109256 + Details
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 + Details
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