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ACCOUNTS RECEIVABLE (Tables)
 12 Months Ended
Dec. 31, 2011
Accounts Receivable, Net [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Accounts receivable comprised the following at December 31, 2011 and December 31, 2010:

 
December 31, 2011

 
December 31, 2010

Unrelated customers
$
204,747

 
$
221,463

Less: allowance for bad debts and credit notes
(13,555
)
 
(13,202
)
Related parties
1,020

 
884

Less: allowance for bad debts and credit notes
(55
)
 
(3
)
Total accounts receivable
$
192,157

 
$
209,142