Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity and Share-Based Compensation (Details)

v2.4.0.6
Stockholders' Equity and Share-Based Compensation (Details) (USD $)
 9 Months Ended 12 Months Ended
Sep. 29, 2012
Dec. 31, 2011
Summary of stock option activity    
Exercised - Shares 489,105  
2007 Omnibus Plan [Member]
    
Summary of stock option activity    
Options outstanding, Shares, Beginning 5,526,090  
Options Outstanding, Weighted Average Exercise Price, Beginning $ 4.51  
Options Outstanding, Weighted Average Remaining Contractual Term (in years), Beginning 6 years 10 months 13 days 6 years 11 months 12 days
Granted - Shares 787,500  
Granted - Weighted Average Exercise Price $ 4.20  
Exercised - Shares (55,772)  
Exercised - Weighted Average Exercise Price $ 2.48  
Expired - Shares (166,375)  
Expired - Weighted Average Exercise Price $ 4.76  
Forfeited - Shares (102,500)  
Forfeited - Weighted Average Exercise Price $ 7.70  
Options outstanding, Shares, Ending 5,988,943 5,526,090
Options Outstanding, Weighted Average Exercise Price, Ending $ 4.43 $ 4.51
Options outstanding, Aggregate Intrinsic Value, Ending $ 2,783,224  
Options Outstanding, Weighted Average Remaining Contractual Term (in years), Ending 6 years 10 months 13 days 6 years 11 months 12 days
Options vested and expected to vest, Shares, Ending 5,501,622  
Options vested and expected to vest, Weighted Average Exercise Price, Ending $ 4.39  
Options vested and expected to vest, Weighted Average Remaining Contractual Term (in years), Ending 6 years 8 months 1 day  
Options vested and expected to vest, Aggregate Intrinsic Value, Ending 2,782,451  
Options exercisable, Shares, Ending 4,101,202  
Options exercisable, Weighted Average Exercise Price, Ending $ 4.1  
Options exercisable, Weighted Average Remaining Contractual Term (in years), Ending 5 years 11 months 27 days  
Options exercisable, Aggregate Intrinsic Value, Ending 2,586,940  
2007 New Employee Incentive Plan [Member]
    
Summary of stock option activity    
Options outstanding, Shares, Beginning 1,250,000  
Options Outstanding, Weighted Average Exercise Price, Beginning $ 5.65  
Options Outstanding, Weighted Average Remaining Contractual Term (in years), Beginning 5 years 3 months 6 years 3 months 29 days
Granted - Shares 35,000  
Granted - Weighted Average Exercise Price $ 4.30  
Exercised - Shares (433,333)  
Exercised - Weighted Average Exercise Price $ 1.15  
Forfeited - Shares (66,667)  
Forfeited - Weighted Average Exercise Price $ 1.15  
Options outstanding, Shares, Ending 785,000 1,250,000
Options Outstanding, Weighted Average Exercise Price, Ending $ 8.46 $ 5.65
Options outstanding, Aggregate Intrinsic Value, Ending     
Options Outstanding, Weighted Average Remaining Contractual Term (in years), Ending 5 years 3 months 6 years 3 months 29 days
Options vested and expected to vest, Shares, Ending 766,562  
Options vested and expected to vest, Weighted Average Exercise Price, Ending $ 8.56  
Options vested and expected to vest, Weighted Average Remaining Contractual Term (in years), Ending 5 years 1 month 21 days  
Options vested and expected to vest, Aggregate Intrinsic Value, Ending     
Options exercisable, Shares, Ending 750,000  
Options exercisable, Weighted Average Exercise Price, Ending $ 8.65  
Options exercisable, Weighted Average Remaining Contractual Term (in years), Ending 5 years 15 days  
Options exercisable, Aggregate Intrinsic Value, Ending