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Concentrations of Risk
 12 Months Ended
Dec. 29, 2012
Risks and Uncertainties [Abstract]  
Concentrations of Risk
Concentrations of Risk
Financial instruments that potentially subject the Company to concentration of credit risk other than marketable securities consist principally of trade accounts receivable. Trade receivables are primarily derived from sales to manufacturers of consumer electronic devices and wireless components or military applications.
 
Ongoing credit evaluations of customers’ financial condition are performed and collateral, such as letters of credit, are generally not required. The following table depicts the customer’s trade receivable balance as a percentage of gross trade receivables as of the end of the year indicated:
 
Percent of Gross
Accounts Receivable
Customer
2012
 
2011
Raytheon Company
37
 
14
DRS RSTA, Inc
12
 
*
Sales to significant non-affiliated customers, for fiscal years 2012, 2011 and 2010, as a percentage of total revenues is shown in the table below. Note the caption “Military Customers in Total” in the table below excludes research and development contracts. The Company sells its displays to Japanese customers through Ryoden Trading Company. (The symbol “*” indicates that sales to that customer were less than 10% of the Company’s total revenues.)
 
Sales as a Percent
of Total Revenue
 
Fiscal Year
Customer
2012
 
2011
 
2010
Military Customers in Total
57
 
60
 
69
Raytheon Company
22
 
23
 
36
DRS RSTA Inc
21
 
18
 
18
QiOptiq Defense Inc
*
 
10
 
10
Ryoden Trading Company
12
 
15
 
11
United States Government Funded Research and Development Contracts
10
 
8
 
5