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Note 4 - Unconsolidated Investments (Tables)
3 Months Ended
Mar. 31, 2016
Notes Tables  
Equity Method Investments [Table Text Block]
 
 
March 31,
 
 
December 31,
 
 
 
2016
 
 
2015
 
 
 
(Dollars in thousands)
 
Sarulla
  $ (12,216 )   $ (8,100 )