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Note 19 - Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Deferred Tax Assets, Foreign Deferred Revenue and Other Provision $ 3,604,000 $ 4,054,000
Effective Income Tax Rate Reconciliation, Percent, Total   23.30%
Deferred Federal, State and Local, Tax Expense (Benefit), Total   $ 240,000
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Total   240,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent 21.00%  
Unrecognized Tax Benefits, Ending Balance $ 200,000 200,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total 0 0
State and Local Jurisdiction [Member]    
Income Taxes Paid 13,000 37,000
Proceeds from Income Tax Refunds 5,000 51,000
Operating Loss Carryforwards, Total 105,284,000  
Operating Loss Carryforwards, Subject to Expiration 102,085,000  
Operating Loss Carryforwards, Not Subject to Expiration 3,199,000  
State and Local Jurisdiction [Member] | FLORIDA    
Operating Loss Carryforwards, Total 57,524,000  
State and Local Jurisdiction [Member] | Kentucky 1 [Member]    
Operating Loss Carryforwards, Total 47,760,000  
Foreign Tax Authority [Member]    
Income Taxes Paid 206,000 293,000
Proceeds from Income Tax Refunds 0 0
Domestic Tax Authority [Member]    
Income Taxes Paid 0 0
Proceeds from Income Tax Refunds 92,000 $ 92,000
Operating Loss Carryforwards, Total 140,310,000  
Operating Loss Carryforwards, Subject to Expiration 134,501,000  
Operating Loss Carryforwards, Not Subject to Expiration 5,809,000  
Mexican Subsidiaries [Member]    
Deferred Tax Assets, Foreign Deferred Revenue and Other Provision $ 3,717,000