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Stockholders' Equity and Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 27, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock- Based Compensation | A summary of stock option activity under the stock award plans as of December 27, 2014 and changes during the twelve month period is as follows:
| 2014
| Shares |  | Weighted Average Exercise Price
Balance, beginning of year | 558,850 |  |  | $ | 5.09 |
Options forfeited/canceled | (391,600 | ) |  | 5.75 |
Options exercised | (36,750 | ) |  | 3.75 |
Balance, end of year | 130,500 |  |  | $ | 3.49 |
Exercisable, end of year | 130,500 |  |  |
NonVested Restricted Common Stock | A summary of the activity for nonvested restricted common stock awards as of December 27, 2014 and changes during the twelve months then ended is presented below:
| Shares |  | Weighted Average Grant Fair Value
Balance, December 28, 2013 | 2,974,148 |  |  | $ | 4.25 |
Granted | 523,000 |  |  | 4.01 |
Forfeited | (102,400 | ) |  | 3.33 |
Vested | (843,117 | ) |  | 3.73 |
Balance, December 27, 2014 | 2,551,631 |  |  | $ | 4.41 |
Stock-Based Compensation Expense | The following table summarizes stock-based compensation expense related to employee stock options and nonvested restricted common stock awards for the fiscal years 2014, 2013 and 2012 (no tax benefits were recognized):
| 2014 |  | 2013 |  | 2012
Cost of component revenues | $ | 766,221 |  |  | $ | 414,842 |  |  | $ | 513,789 |
Research and development | 965,945 |  |  | 423,548 |  |  | 366,443 |
Selling, general and administrative | 3,095,606 |  |  | 3,365,018 |  |  | 3,606,758 |
Total | $ | 4,827,772 |  |  | $ | 4,203,408 |  |  | $ | 4,486,990 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock options and stock appreciation rights that were outstanding at the beginning and end of the year, exercisable at the end of the year, and the number of stock options and stock appreciation rights 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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