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Marketable Securities
 3 Months Ended
Mar. 31, 2012
Marketable Securities [Abstract]  
Marketable Securities
4. Marketable Securities

   
At March 31, 2012
  
At December 31, 2011
 
   
Cost
  
Unrealized
gain/(loss)
  
Fair value
  
Cost
  
Unrealized
gain/(loss)
  
Fair value
 
   
 
  
 
  
 
  
 
  
 
  
 
 
Esperanza Resources Corp.
 $10  $19  $29  $10  $99  $109 
Black Isle Resources
  36   (1)  35   36   -   36 
Nevgold Resources Corp.
  -   -   -   87   55   142 
Sprott Resources Corp.
  139   83   222   139   75   214 
Canadian Phoenix
  81   14   95   81   14   95 
Other
  549   (24)  525   458   (68)  390 
   $815  $91  $906  $811  $175  $986 
 
During the year ended December 31, 2011, we determined that certain of our securities had an other-than-temporary decline in value.  The write down of $158 has been included in our Consolidated Statements of Income/(Loss) for the year ended December 31, 2011.  There were no such write downs during the three months ended March 31, 2012.