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Note 13 - Goodwill and Other Intangible Assets (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Nov. 30, 2020
Goodwill, Ending Balance $ 100,521 $ 105,367    
Acquired Finite-lived Intangible Asset, Residual Value 0      
Amortization of Intangible Assets, Total 14,300 13,800 $ 12,400  
Finite-Lived Intangible Asset, Expected Amortization, Year One 13,500      
Finite-Lived Intangible Asset, Expected Amortization, Year Three 13,200      
Finite-Lived Intangible Asset, Expected Amortization, Year Four 13,100      
Mass Movement, Inc. [Member]        
Goodwill, Ending Balance $ 100,500 $ 105,400 $ 96,300 $ 3,900