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Note 14 - Investment in Equity-accounted Investees (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 25, 2021
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Payments to Acquire Equity Method Investments       $ (0) $ 25,000  
Income (Loss) from Equity Method Investments   $ 3,833 $ 59 $ 3,825 $ 45  
CSP Management Limited [Member]            
Payments to Acquire Call Options $ 5,000          
CSS Corp. [Member]            
Payments to Acquire Equity Method Investments $ 25,000          
Equity Method Investment, Ownership Percentage 26.00%          
CSS Corp LP [Member]            
Payments to Acquire Equity Method Investments $ 25,000          
Equity Method Investment, Ownership Percentage 62.50% 61.35%   61.35%   61.35%
Queensland Partnership Group Pty. Ltd. [Member]            
Equity Method Investment, Ownership Percentage   33.33%   33.33%    
Services Queensland Partnership [Member]            
Equity Method Investment, Ownership Percentage   16.67%   16.67%    
Investment in Individually Immaterial Associate [Member]            
Income (Loss) from Equity Method Investments   $ 5   $ 7