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Plant and Equipment
6 Months Ended
Jun. 30, 2011
Plant and Equipment  
Plant and Equipment
7.           Plant and Equipment

   
June 30, 2011
  
December 31, 2010
 
   
Cost
  
Accumulated depreciation and write-downs
  
Net
  
Cost
  
Accumulated depreciation and write-downs
  
Net
 
                    
Concordia, Mexico
 $18,185  $79  $18,106  $18,185  $63  $18,122 
Awak Mas, Indonesia
  119   91   28   119   91   28 
Mt. Todd, Australia
  1,193   608   585   1,110   494   616 
Corporate, United States
  362   342   20   355   312   43 
   $19,859  $1,120  $18,739  $19,769  $960  $18,809