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Investments (Tables)
 6 Months Ended
Jun. 30, 2011
Investments  
Summary of "available for sale" securities

 

 

 

 

June 30,

 

December 31,

 

 

 

2011

 

2010

 

Adjusted cost of “available for sale” securities

 

$

2,390

 

$

1,876

 

Gross unrealized gains

 

6,274

 

6,196

 

Gross unrealized losses

 

(105

)

(39

)

Fair value of “available for sale” securities

 

$

8,559

 

$

8,033