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Note 18 - Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Feb. 23, 2023
Dec. 31, 2023
Dec. 31, 2022
Deferred Tax Assets, Foreign Deferred Revenue and Other Provision   $ 2,657,000 $ 2,367,000
Unrecognized Tax Benefits   200,000 200,000
State and Local Jurisdiction [Member]      
Income Taxes Paid   10,000 3,000
Proceeds from Income Tax Refunds   0 0
Operating Loss Carryforwards   106,446,000  
Operating Loss Carryforwards, Subject to Expiration   99,679,000  
Operating Loss Carryforwards, Not Subject to Expiration   6,767,000  
State and Local Jurisdiction [Member] | FL [Member]      
Operating Loss Carryforwards   58,288,000  
State and Local Jurisdiction [Member] | Kentucky 1 [Member]      
Operating Loss Carryforwards   48,158,000  
Foreign Tax Authority [Member]      
Income Taxes Paid   566,000 $ 934,000
Proceeds from Income Tax Refunds   0  
Foreign Tax Authority [Member] | Mexican Tax Authority [Member]      
Tax Assessment of the Company $ 1,150,000    
Domestic Tax Authority [Member]      
Income Taxes Paid   0  
Proceeds from Income Tax Refunds   0  
Operating Loss Carryforwards   145,455,000  
Operating Loss Carryforwards, Subject to Expiration   134,821,000  
Operating Loss Carryforwards, Not Subject to Expiration   $ 10,634,000