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Stock Based Compensation (Tables) | 6 Months Ended
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Jun. 29, 2013
Activity in Stock Option Plan | The following table summarizes information regarding activity in our stock option plan during the six months ended June 29, 2013:
|  | Number of Shares |  |  | Weighted Average Exercise Price Per Share |  |  | Aggregate Intrinsic Value (thousands) |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Outstanding at December 29, 2012 |  | 1,570,543 |  |  | $ |  | 3.64 |  |  |  |  |
Granted |  | 48,200 |  |  | $ |  | 4.74 |  |  |  |  |
Exercised |  | (292,016 | ) |  | $ |  | 2.79 |  |  |  |  |
Canceled or forfeited |  | (83,868 | ) |  | $ |  | 4.41 |  |  |  |  |
Outstanding at June 29, 2013 |  | 1,242,859 |  |  | $ |  | 3.83 |  |  | $ |  | 2,736 |
Weighted Average Assumptions for Fair Value Estimate of Stock-Based Awards (Options) | The Company uses the Black-Scholes option-pricing model to estimate fair value of stock-based awards (options) with the following weighted average assumptions:
| Three Months Ended |  |  | Six Months Ended |
--- | --- | --- | --- | --- | ---
| June 29, 2013 |  |  | June 30, 2012 |  |  | June 29, 2013 |  |  | June 30, 2012 |
Average risk free interest rate |  | 1.31 |  | % |  |  | 0.68 |  | % |  |  | 0.83 |  | % |  |  | 0.70 |  | %
Expected life (in years) |  | 4.50 years |  |  |  | 4.55 years |  |  |  | 4.50 years |  |  |  | 4.55 years |
Dividend yield |  | 0 |  | % |  |  | 0 |  | % |  |  | 0 |  | % |  |  | 0 |  | %
Average volatility |  | 79 |  | % |  |  | 91 |  | % |  |  | 84 |  | % |  |  | 91 |  | %
Stock-Based Compensation Expense | The following table shows stock-based compensation expense included in the condensed consolidated statements of operations for the three months and six months ended June 29, 2013 and June 30, 2012:
| Three Months Ended |  |  | Six Months Ended |
--- | --- | --- | --- | --- | ---
(in thousands) | June 29, 2013 |  |  | June 30, 2012 |  |  | June 29, 2013 |  |  | June 30, 2012 |
Cost of revenues | $ |  | 29 |  |  | $ |  | 16 |  |  | $ |  |  | 51 |  |  | $ |  | 34 |
Research and development |  | 16 |  |  |  | 20 |  |  |  | 36 |  |  |  | 39 |
Sales and marketing |  | 28 |  |  |  | 26 |  |  |  | 50 |  |  |  | 55 |
General and administrative |  | 100 |  |  |  | 88 |  |  |  | 197 |  |  |  | 169 |
| $ |  | 173 |  |  | $ |  | 150 |  |  | $ |  |  | 334 |  |  | $ |  | 297 |
Stock Options Outstanding, Exercisable and Expected to Vest | Information regarding stock options outstanding, exercisable and expected to vest at June 29, 2013 is summarized below:
| Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life (Years) |  |  | Aggregate Intrinsic Value (thousands) |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Options outstanding |  | 1,242,859 |  |  | $ |  | 3.83 |  |  |  | 3.44 |  |  | $ |  | 2,736 |
Options vested and expected to vest |  | 1,183,162 |  |  | $ |  | 3.83 |  |  |  | 3.31 |  |  | $ |  | 2,619 |
Options exercisable |  | 870,170 |  |  | $ |  | 3.79 |  |  |  | 2.33 |  |  | $ |  | 1,999 |
Restricted Stock Units Activity | Information regarding the restricted stock units activity for the six months ended June 29, 2013 is summarized below:
| Number of Shares |
--- | --- | ---
Outstanding at December 29, 2012 |  | 55,999 |
Restricted stock units granted |  | 220,000 |
Restricted stock units released |  | (1,250 | )
Restricted stock units forfeited |  | 0 |
Outstanding at June 29, 2013 |  | 274,74 9 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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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