Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies Significant Accounting Policies (Details 4)

v2.4.0.6
Significant Accounting Policies Significant Accounting Policies (Details 4) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
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 $ 4 $ 36