Quarterly report pursuant to Section 13 or 15(d)

Sales to Major Customers (Details)

v2.4.0.6
Sales to Major Customers (Details) (Panasonic [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Dec. 31, 2012
Panasonic [Member]
     
Information relating to the activity with customers      
Percent of consolidated revenue 33.40% 41.60%  
Accounts Receivable $ 8,082   $ 17,412