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Note 3 - Restructuring Costs - Restructuring Costs (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Restructuring costs $ (1,964) $ 0 $ 1,786,863 $ 0
CEO Separation [Member]        
Restructuring costs     230,538  
Employee Severance [Member]        
Restructuring costs     159,841  
Facility Closing [Member]        
Restructuring costs     278,391  
Capex Commitments [Member]        
Restructuring costs     697,213  
Write-down [Member]        
Restructuring costs     $ 420,880