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Note 24 - Earnings Per Share - Earnings Per Share Computations (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
USD ($)
shares
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2016
USD ($)
shares
Statement Line Items [Line Items]      
Issued shares at beginning of year (in shares) 10,603,153 52,787,428 52,078,908
Share consolidation (in shares) (42,135,492) (41,663,126)
Issued shares post consolidation (in shares) 10,603,153 10,651,936 10,415,782
Weighted average shares repurchased (in shares) (60,978)
Weighted average shares issued (in shares) 16,924 41,460
Weighted average number of shares at December 31 (in shares) 10,603,153 10,607,882 10,457,242
Weighted average shares at December 31 (in shares) 10,603,153 10,607,882 10,457,242
Effect of dilutive options (in shares) 698 9,622 23,449
Weighted average number of shares (diluted) at December 31 (in shares) 10,603,851 10,617,504 10,480,691
Profit/(loss) for the year attributable to owners of the Company (basic and diluted) | $ $ 10,766 $ 9,384 $ 8,526
Blanket Mine Employee Trust Adjustment | $ (280) (210) (238)
Profit attributable to ordinary shareholders (basic and diluted) | $ $ 10,486 $ 9,174 $ 8,288
Basic earnings per share - $ 0.99 0.86 0.79
Diluted earnings per share - $ 0.99 0.86 0.79