Annual report pursuant to Section 13 and 15(d)

Note 1 - The Company and Summary of Significant Accounting Policies (Tables) (USD $)

v3.20.1
Note 1 - The Company and Summary of Significant Accounting Policies (Tables) (USD $)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Potentially dilutive securities
    December 31,  
    2019     2018  
Exercise of common stock warrants     9,065,265       1,813,053  
Conversion of preferred stock into common stock     11,768,295       1,163,659  
Conversion of convertible debentures into common stock     66,136,870       5,704,543  
Exercise of common stock options     40       1,113  
      86,970,470       8,682,368