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Note 20 - Other Non Current Liabilities (Detail) - Other Non-Current Liabilities Repayment Schedule (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Tranche A [Member]
         
2013         $ 600
2014       800  
2015     800    
2016   800      
2017 1,500        
4,500        
Tranche B [Member]
         
2017 806        
$ 806