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Note 26 - Share-based Expenses - Share-based Expense (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jun. 23, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Statement Line Items [Line Items] |  |  |  |  |
Equity-settled share-based payment expense | $ 806 | $ 14 | $ 835 | [1] | $ 170
Cash-settled share-based payment expense |  | 315 | 976 | [1] | 618
Share option programmes [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Equity-settled share-based payment expense |  | 14 | 29 |  | 170
Restricted and performance share units [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Cash-settled share-based payment expense |  | 218 | 853 |  | 618
Facilitation and advanced dividend loan modification [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Equity-settled share-based payment expense |  |  | 806 |  |
Cash-settled awards [member] |  |  |  |  |
Statement Line Items [Line Items] |  |  |  |  |
Cash-settled share-based payment expense |  | $ 97 | $ 123 |  |
[1] | Restated, refer note 4(a).

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