| 
           Sales to Major Customers (Details Textual) 
         | 
        3 Months Ended | 
|---|---|
| 
           Mar. 30, 2013
 
          Customer 
         | 
      |
| Sales to Major Customers (Textual) [Abstract] | |
| Number of major customers | 1 | 
| X | ||||||||||
| 
             
- Definition 
          Number of major customers. No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Details 
          
  |