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Investment in Global (Tables)
6 Months Ended
Jun. 30, 2013
Investments, Debt and Equity Securities [Abstract]  
Market Value of Investment in Globall

   June 30, 2013  December 31, 2012
           
Shares of Global Stock Held by HKN   12,357    12,357 
           
Closing Price of Global Stock  £0.74   £1.18 
           
Foreign Currency Exchange Rate   1.5211    1.6259 
           
Market Value of Investment in Global  $13,909   $23,607