Note 14 - Investment in Equity-accounted Investees - Equity-accounted Investees (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021	Feb. 25, 2021
Carrying amount of investment in equity-accounted investees	$ 35,513		$ 35,513		$ 31,688
Aggregate amounts of the group’s share of income (loss) of equity-accounted investees	3,833	$ 59	3,825	$ 45
Current assets	227,019		227,019		225,018
Non-current assets	400,562		400,562		417,457
Current and non-current liabilities	(375,677)		(375,677)		$ (389,155)
Other comprehensive income	(3,486)	(913)	(4,075)	(2,381)
Gross profit	16,727	24,554	37,784	49,241
Selling, general and administrative expenses	(13,743)	(12,298)	(29,624)	(26,469)
Operating loss	2,239	12,275	6,008	20,893
Net income	1,867	6,885	624	(5,270)
Total comprehensive income for the period	$ (858)	7,207	$ (1,161)	(4,116)
CSS Corp LP [Member]
% of ownership interest	61.35%		61.35%		61.35%	62.50%
Carrying amount of investment in equity-accounted investees	$ 35,513		$ 35,513		$ 31,688
Aggregate amounts of the group’s share of income (loss) of equity-accounted investees	3,833	64	3,825	52
Net assets	57,887		57,887		51,652
Opening net assets			51,652
Net Assets, Ending Balance	57,887		57,887		51,652
Immaterial Associates [Member]
Carrying amount of investment in equity-accounted investees					0
CSS Corp LP [Member]
Aggregate amounts of the group’s share of income (loss) of equity-accounted investees			3,825		6,688
Current assets	34		34		42
Non-current assets	57,964		57,964		51,690
Current and non-current liabilities	(111)		(111)		(80)
Net assets	35,513		35,513		31,688
Opening net assets			31,688	0	0
Acquired during the year			0		25,000
Other comprehensive income	0	0	0	0	0
Net Assets, Ending Balance	35,513		35,513		31,688
Cost of services	0	0	0	0
Gross profit	0	0	0	0
Operating loss	(26)	(34)	(34)	(54)
Unrealised gain on investment	6,273	139	6,268	139
Net income	6,247	105	6,234	85
Total comprehensive income for the period	6,247	105	6,234	85
CSS Corp LP [Member] | Selling, General and Administrative Expenses [Member]
Selling, general and administrative expenses	$ (26)	$ (34)	(34)	$ (54)
CSS Corp LP [Member] | CSS Corp LP [Member]
Net assets					31,688
Opening net assets			$ 31,688
Net Assets, Ending Balance					$ 31,688