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Note 19 - Stock-based Compensation - SARs Activity (Details) - Stock Appreciation Rights (SARs) [Member] - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Dec. 31, 2019
Unvested (in shares) 515 593  
Outstanding, aggregate intrinsic value [1] $ 12,294 $ 16,854 $ 7,706
Unvested, grant date weighted average cost (in dollars per share) $ 5.08 $ 4.44  
Outstanding, weighted average remaining contractual life (Year) 5 years 4 months 24 days 5 years 1 month 6 days 5 years 1 month 6 days
Awarded (in shares) 33 30  
Granted, aggregate intrinsic value [1] $ 0 $ 0  
Fair value at grant date (in dollars per share) $ 11.82 $ 9.69  
Exercised (in shares) (61) (108)  
Exercised, aggregate intrinsic value [1] $ 2,544 $ 4,239  
Exercised weighted average fair value (in dollars per share) $ 2.78 $ 2.85  
Forfeited (in shares) 0    
Vested and exercisable (in shares) 349    
Vested and exercisable, aggregate intrinsic value [1] $ 10,121    
Vested and exercisable, weighted average fair value (in dollars per share) $ 4.97    
Vested and exercisable, weighted average remaining contractual life (Year) 4 years 4 months 24 days    
Unvested (in shares) 138    
Unvested, aggregate intrinsic value [1] $ 2,173    
Unvested, weighted average fair value (in dollars per share) $ 8.08    
Unvested, weighted average remaining contractual life (Year) 3 years 3 months 18 days    
Unvested (in shares) 487 515  
Unvested, grant date weighted average cost (in dollars per share) $ 5.83 $ 5.08  
Vested in the current year (in shares) 43    
Vested in the current year, aggregate intrinsic value [1] $ 881    
Vested in the current year (in dollars per share) $ 6.71    
Minimum [Member]      
Outstanding, exercise price (in dollars per share) 15.24 15.24  
Granted, exercise price (in dollars per share) 53.29 47.17  
Exercised, exercise price (in dollars per share) 15.24 15.24  
Vested and exercisable, exercise price (in dollars per share) 15.24    
Unvested, exercise price (in dollars per share) 35.90    
Outstanding, exercise price (in dollars per share) 15.24 15.24  
Vested in the current year, exercise price (in dollars per share) 35.90    
Maximum [Member]      
Outstanding, exercise price (in dollars per share) 50.71 40.00  
Granted, exercise price (in dollars per share) 54.91 50.71  
Exercised, exercise price (in dollars per share) 36.65 19.37  
Vested and exercisable, exercise price (in dollars per share) 50.71    
Unvested, exercise price (in dollars per share) 54.91    
Outstanding, exercise price (in dollars per share) 54.91 50.71  
Vested in the current year, exercise price (in dollars per share) 50.71    
Weighted Average [Member]      
Outstanding, exercise price (in dollars per share) 31.16 27.47  
Granted, exercise price (in dollars per share) 54.86 50.48  
Exercised, exercise price (in dollars per share) 16.69 16.40  
Vested and exercisable, exercise price (in dollars per share) 30.84    
Unvested, exercise price (in dollars per share) 44.06    
Outstanding, exercise price (in dollars per share) 34.58 $ 31.16  
Vested in the current year, exercise price (in dollars per share) $ 39.29    
[1] Aggregate intrinsic value for SARs is defined as the amount by which the current market price of the underlying stock exceeds the exercise or grant price.