| 
           Segment Information (Consolidated Net Sales And Long Lived Assets By Percent) (Details) (USD $) 
        In Thousands, unless otherwise specified  | 
        3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
| 
           Sep. 29, 2012 
         | 
        
           Oct. 01, 2011 
         | 
        
           Sep. 29, 2012 
         | 
        
           Oct. 01, 2011 
         | 
        
           Dec. 31, 2011 
         | 
      |
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
| Net sales | $ 165,175 | $ 143,501 | $ 480,196 | $ 435,992 | |
| 
           Hong Kong [Member] 
         | 
        |||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
| Net sales | 44,944 | 34,826 | 132,298 | 116,814 | |
| 
           United States [Member] 
         | 
        |||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
| Net sales | 39,991 | 37,975 | 115,577 | 112,132 | |
| Long-lived Assets | 47,434 | 47,434 | 46,991 | ||
| 
           Canada [Member] 
         | 
        |||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
| Net sales | 15,309 | 16,107 | 47,744 | 50,896 | |
| 
           Australia [Member] 
         | 
        |||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
| Long-lived Assets | 15,229 | 15,229 | 15,280 | ||
| 
           China [Member] 
         | 
        |||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||
| Long-lived Assets | $ 59,077 | $ 59,077 | $ 59,806 | ||