v2.4.0.6
Concentration of Risk and Geographic Segment Data (Details Textual) (USD $)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 29, 2012
customer
Sep. 24, 2011
customer
Sep. 29, 2012
customer
Sep. 24, 2011
customer
Sep. 29, 2012
Concentration of Risk, Customer One [Member]
Sep. 24, 2011
Concentration of Risk, Customer One [Member]
Sep. 29, 2012
Concentration of Risk, Customer One [Member]
Sep. 24, 2011
Concentration of Risk, Customer One [Member]
Dec. 31, 2011
Concentration of Risk, Customer One [Member]
Sep. 29, 2012
Concentration of Risk, Customer Two [Member]
Sep. 24, 2011
Concentration of Risk, Customer Two [Member]
Sep. 29, 2012
Concentration of Risk, Customer Two [Member]
Sep. 24, 2011
Concentration of Risk, Customer Two [Member]
Dec. 31, 2011
Concentration of Risk, Customer Two [Member]
Sep. 29, 2012
Geographic Concentration Risk, Outside North America [Member]
Sep. 24, 2011
Geographic Concentration Risk, Outside North America [Member]
Jun. 25, 2011
Geographic Concentration Risk, Outside North America [Member]
Jun. 25, 2011
Geographic Concentration Risk, Outside North America [Member]
Sep. 29, 2012
Geographic Concentration Risk, Outside North America [Member]
Sep. 24, 2011
Geographic Concentration Risk, Outside North America [Member]
Sep. 29, 2012
Maximum [Member]
Concentration of Risk, Other Customer [Member]
Sep. 29, 2012
Maximum [Member]
Concentration of Risk, Other Customer [Member]
Sep. 29, 2012
Maximum [Member]
Geographic Concentration Risk, United States [Member]
Sep. 29, 2012
Maximum [Member]
Geographic Concentration Risk, United States [Member]
Concentration Risk (Textual) [Abstract]                                                
Percentage of net sales         15.00% 13.00% 15.00% 13.00%   12.00% 8.00% 11.00% 9.00%   32.00% 32.00% 34.00% 32.00% 32.00% 32.00% 10.00% 10.00% 10.00% 10.00%
Accounts receivable         $ 1,556,000   $ 1,556,000   $ 1,641,000 $ 2,923,000   $ 2,923,000   $ 2,252,000                    
Number of customers bearing more than 10% of net sales 0 0 0 0