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Note 4 - Stock Options and Warrants (Tables)
6 Months Ended
Jun. 30, 2020
Equity [Abstract]  
Summary of the stock option activity
    Number of Options     Weighted Average Exercise Price  
Outstanding, December 31, 2019     40     $ 877.50  
Granted     -       -  
Exercised     -       -  
Expired     -       -  
Outstanding, June 30, 2020     40     $ 877.50  
Exercisable, June 30, 2020     40     $ 877.50  
Summary of the warrant activity
    Number of Warrants     Weighted Average Exercise Price  
Outstanding at December 31, 2019:     1,813,053     $ 0.20  
Granted     5,500,000     $ 0.20  
Forfeited/canceled     480,352     $ 0.20  
Exercised     -       -  
Outstanding at June 30, 2020     6,832,701     $ 0.20  
Exercisable at June 30, 2020     6,832,701     $ 0.20