Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies (Details 6)

v2.4.0.6
Significant Accounting Policies (Details 6) (USD $)
In Thousands, unless otherwise specified
9 Months Ended 12 Months Ended
Sep. 29, 2012
Dec. 29, 2012
Dec. 31, 2011
Share-based Compensation [Abstract]      
Estimated forfeiture rate, minimum (as a percent) 0.00%    
Estimated forfeiture rate, maximum (as a percent) 5.00%    
Expected dividend yield (as a percent) 0.00%    
Share-based compensation expense recognized   $ 153 $ 428
Estimated share-based compensation expenses in 2013   $ 4