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Note R - Income Taxes (Details Textual) - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Deferred Tax Assets, Valuation Allowance $ 17,214,690 $ 17,188,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 0 0
Domestic Tax Jurisdiction [Member] | Internal Revenue Service (IRS) [Member]    
Operating Loss Carryforwards 60,300,000  
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 39,700,000  
Operating Loss Carryforwards, Not Subject to Expiration $ 18,600,000  
Open Tax Year 2019 2020 2021 2022  
State and Local Jurisdiction [Member] | Internal Revenue Service (IRS) [Member]    
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration $ 5,300,000  
Approximation [Member]    
Deferred Tax Assets, Valuation Allowance $ 17,239,173 $ 17,188,000