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Accounts Receivable (Tables)
 6 Months Ended
Jul. 02, 2011
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Text Block]
 
 
July 2,

2011
 
December 31,

2010
Accounts receivable
 
$
4,393,042


 
$
4,140,868


Allowances for doubtful accounts
 
(45,631
)
 
(37,998
)
Accounts receivable, net
 
$
4,347,411


 
$
4,102,870