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Stockholders' Equity and Share-Based Compensation (Details Textual) (USD $)
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3 Months Ended | 9 Months Ended | 9 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 9 Months Ended | 6 Months Ended | 9 Months Ended | 9 Months Ended | |||||||||||
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Sep. 29, 2012
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Oct. 01, 2011
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Sep. 29, 2012
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Oct. 01, 2011
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Dec. 31, 2011
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Sep. 29, 2012
Performance Shares [Member]
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Mar. 31, 2012
Warrants [Member]
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Jun. 30, 2012
Warrants [Member]
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Sep. 29, 2012
Warrants [Member]
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Oct. 01, 2011
Warrants [Member]
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Apr. 27, 2010
Warrants [Member]
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May 05, 2009
Warrants [Member]
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Sep. 29, 2012
2007 Omnibus Plan [Member]
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Dec. 31, 2011
2007 Omnibus Plan [Member]
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Jun. 30, 2012
2007 New Employee Incentive Plan [Member]
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Sep. 29, 2012
2007 New Employee Incentive Plan [Member]
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Dec. 31, 2011
2007 New Employee Incentive Plan [Member]
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Sep. 29, 2012
2007 New Employee Incentive Plan [Member]
Stock Option [Member]
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Sep. 29, 2012
2006 Equity Incentive Plan [Member]
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Jun. 30, 2012
2006 Equity Incentive Plan [Member]
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Sep. 29, 2012
Board of Directors [Member]
2007 Omnibus Plan [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||||||||||||||||
| Common stock authorized from stock option exercises | 100,000,000 | 100,000,000 | 100,000,000 | ||||||||||||||||||
| Common stock authorized | 2,000,000 | ||||||||||||||||||||
| Common stock issued | 31,125,000 | 31,125,000 | 30,626,000 | 10,121 | |||||||||||||||||
| Shares of common stock issued from option exercise | 489,105 | (55,772) | (433,333) | ||||||||||||||||||
| Equity value of issued stock awards | $ 159,446,000 | $ 159,446,000 | $ 157,140,000 | $ 42,500 | |||||||||||||||||
| Option grant expiry date | Oct. 31, 2007 | ||||||||||||||||||||
| Option grant vesting period | 4 years | 4 years | |||||||||||||||||||
| Exercise price of option grants | 100.00% | 100.00% | |||||||||||||||||||
| Shares available for future grants | 1,857,241 | 781,667 | 0 | ||||||||||||||||||
| Weighted-average fair value of options granted | $ 2.65 | $ 2.72 | |||||||||||||||||||
| Options outstanding | 5,988,943 | 5,526,090 | 785,000 | 1,250,000 | 672,000 | ||||||||||||||||
| Intrinsic value of the exercised options | 1,100,000 | 100,000 | |||||||||||||||||||
| Options exercisable | 4,101,202 | 750,000 | 672,000 | ||||||||||||||||||
| Option expired | 6,600 | ||||||||||||||||||||
| Performance options to purchase shares of common stock | 125,000 | ||||||||||||||||||||
| Unrecognized share-based compensation expense | 3,000,000 | 3,000,000 | 2,400,000 | 47,000 | |||||||||||||||||
| Weighted-average period of unrecognized share-based compensation expense | 2 years 8 months 12 days | 2 years 8 months 12 days | |||||||||||||||||||
| Common stock warrants issued during period | 20,000 | 30,000 | |||||||||||||||||||
| Warrant exercise price for warrants issued during period | 8.32 | 2.14 | |||||||||||||||||||
| Increment of shares in warrant vest | 833 | 833 | |||||||||||||||||||
| Grant date fair value of warrants issued during period | $ 2.12 | $ 1.09 | |||||||||||||||||||
| Remeasured fair value of warrants | $ 3.14 | ||||||||||||||||||||
| Warrants exercised during period | 0 | ||||||||||||||||||||
| Outstanding common stock warrants | 50,000 | ||||||||||||||||||||
| Aggregate intrinsic value of outstanding and exercisable warrants | 39,600 | ||||||||||||||||||||
| Share-based compensation expense recognized related to warrants | 0 | 12,000 | 16,000 | 55,000 | |||||||||||||||||
| Share-based compensation expenses reversed during period | 105,000 | ||||||||||||||||||||
| Unrecognized share-based compensation expense related to warrants outstanding | 0 | ||||||||||||||||||||
| Fully vested warrants | $ 1.42 | ||||||||||||||||||||
| Common stock authorized from stock option exercises | 100,000,000 | 100,000,000 | 100,000,000 | ||||||||||||||||||
| Estimated forfeitures excluded from unrecognized share-based compensation expense | 2,400,000 | ||||||||||||||||||||
| Amounts capitalized to internally-developed software | 56,000 | 60,000 | 192,000 | 171,000 | |||||||||||||||||
| Performance stock option adjustment | $ 94,000 | ||||||||||||||||||||