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Note 14 - Restructuring Costs (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2020
Sep. 30, 2019
Mar. 31, 2021
Mar. 31, 2020
Proceeds from Sale of Property, Plant, and Equipment, Total     $ 0 $ 20,040
Restructuring Charges, Total     $ 3  
Sell Manufacturing Facility In New Windsor, New York [Member]        
Proceeds from Sale of Property, Plant, and Equipment, Total   $ 12,300    
Gain (Loss) on Disposition of Property Plant Equipment, Total   4,800    
Sell Manufacturing Facility In New Windsor, New York [Member] | Facility Closing [Member]        
Restructuring Charges, Total   $ 200    
Sale of Manufacturing Facility in North Canton, Ohio [Member] | Facility Closing [Member]        
Proceeds from Sale of Property, Plant, and Equipment, Total $ 7,700      
Gain (Loss) on Disposition of Property Plant Equipment, Total 3,700      
Restructuring Charges, Total $ 500