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Note 19 - Financial Instruments - Change in Fair Value of Contingent Consideration Liability (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability $ (962)
Balance, December 31, 2020 24,128  
Less: current portion 4,243 6,269
Non-current portion 19,885 8,154
Fair Value, Inputs, Level 3 [Member]    
Balance, December 31, 2019 14,423  
Amounts recognized on acquisitions 13,259  
Amounts recognized on acquisitions of management contracts 890  
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability (261) (503)
Resolved and settled in cash (4,664)  
Other 481  
Balance, December 31, 2020 24,128 $ 14,423
Less: current portion 4,243  
Non-current portion $ 19,885