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Note 28 - Dividends - Dividends Paid (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Statement Line Items [Line Items]      
Dividends paid to owners of the Company (Excluding NCI) $ 2,904 $ 2,639 $ 2,504