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Stock-Based Compensation (Tables) | 3 Months Ended
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May 08, 2013
Stock Option |
Schedule of Estimated Fair Value of Stock Options Assumptions | The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:
|  | For the Three Months Ended |
|  | March 31, 2013 |  |  | April 1, 2012 |
Expected life (years) |  |  | 4.0 |  |  |  | 3.5 |
Interest rate |  |  | 0.6 | % |  |  | 0.4 | %
Volatility-historical |  |  | 46.8 | % |  |  | 56.0 | %
Dividend yield |  |  | 0.0 | % |  |  | 0.0 | %
Stock Purchase Rights |
Schedule of Estimated Fair Value of Stock Options Assumptions | The fair value of the employees’ purchase rights granted in the three months ended April 1, 2012 was estimated using the Black-Scholes option-pricing model with the following assumptions:
|  | For the Three Months Ended April 1, 2012 |
Expected life (years) |  |  | 0.5 |
Interest rate |  |  | 0.06 | %
Volatility-historical |  |  | 52.6 | %
Dividend yield |  |  | 0.0 | %

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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