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Available For Sale Investments (Tables)
12 Months Ended
Dec. 31, 2012
Investments, Debt and Equity Securities [Abstract]  
Available for Sale Investments
The following table presents changes in available for sale investments for 2012 and 2011:
 
As at December 31, 2012
 
As at December 31, 2011
 
TGM
 
TGM
 
Fair Value
 
Shares
 
Fair Value
 
Shares
Balance at beginning of year
$
1,416

 
2,000,000

 
$
928

 
1,300,000

Acquisitions
17,117

 
23,676,301

 
469

 
700,000

Dispositions
(805
)
 
(1,155,200
)
 

 

OCI - unrealized (loss)/gain
(2,694
)
 


 
19

 


Balance at end of year
$
15,034

 
24,521,101

 
$
1,416

 
2,000,000