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Note 4 - Investment In Global (Tables)
3 Months Ended
Mar. 31, 2013
Available-for-sale Securities [Table Text Block]
   
March 31, 2013
   
December 31, 2012
 
             
Shares of Global Stock Held by HKN
    12,357       12,357  
Closing Price of Global Stock
  £ 0.93     £ 1.18  
Foreign Currency Exchange Rate
    1.5195       1.6259  
Market Value of Investment in Global
  $ 17,368     $ 23,607