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Note 20 - Reserves - Reserves in Equity (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Statement Line Items [Line Items] |  |  |
Foreign currency translation reserve | $ (5,885) | $ (6,258) | $ (6,520)
Equity-settled share-based payment reserve (Note 23.1) | 16,746 | 16,041 | 15,871
Contributed surplus | 132,591 | 132,591 | 132,591
Total | $ 143,452 | $ 142,374 | $ 141,942

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