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Note C - Summary of Significant Accounting Policies - Fair Value of Level 3 Instruments (Details) - Derivative Financial Instruments, Liabilities [Member]
12 Months Ended
Dec. 31, 2019
USD ($)
Balance at beginning of year
Warrants issued in connection with public offering (See Note I) 376,497
Change in fair value of derivative liability 422,484
Employee options reclassified as derivative liability 500,000
Change in value of derivative securities – exercised (655,000)
Reversal of derivative liability for exercised warrants 820,954
Reversal of Level 3 of derivative liability to equity upon authorized share increase (1,464,935)
Balance at end of period