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Note 4 - Equipment
12 Months Ended
Dec. 31, 2019
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]
4.
Equipment
 
The following table summarizes the value of the Company’s equipment as of
December 
31,
 
2019
and
2018
:
 
   
As of December 31,
 
   
2019
   
2018
 
Computer equipment
  $
98,307
    $
186,456
 
Lab equipment
   
39,651
     
448,198
 
Furniture
   
3,100
     
500,201
 
     
141,058
     
1,134,855
 
Less accumulated depreciation
   
(125,544
)    
(1,107,108
)
Equipment, net
  $
15,514
    $
27,747