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Note 12 - Restructuring and Other Charges - Summary of Restructuring Charges (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Total restructuring and other charges $ 3,586 $ 0 $ 3,586 $ 0
Net Loss on Sale of Fixed Assets [Member]        
Total restructuring and other charges 2,109 0 2,109 0
Facility Closing [Member]        
Total restructuring and other charges 900 900
COVID-19-related Severance Pay and Bad Debt [Member]        
Total restructuring and other charges $ 577 $ 0 $ 577