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Accounts Receivable
 12 Months Ended
Dec. 31, 2011
Receivables [Abstract]  
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]
ACCOUNTS RECEIVABLE  
 
 
As at
December 31,
 
 
2011
 
2010
Value added tax refunds
 
$
8,051

 
$
9,518

Other
 
2,026

 
2,367

Total
 
$
10,077

 
$
11,885