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Note 11 - Administrative Expenses - Components of Administrative Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Statement Line Items [Line Items]      
Investor relations $ 576 $ 663 $ 439
Audit fee 396 294 267
Advisory services fees 4,406 1,459 614
Listing fees 749 512 609
Directors fees – Company 571 569 527
Directors fees – Blanket 61 56 51
Employee costs – salaries and bonusses 6,734 5,855 5,462
Employee costs – settlements 1,784 0 0
Other office administration cost 445 468 177
Information technology and communication cost – Group related 241 391 178
Management liability insurance 897 985 551
Travel costs 569 689 216
Administrative expenses $ 17,429 $ 11,941 $ 9,091