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Note H - Patents (Tables)
 12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
 
December 31, 2019
  
 
Cost
    
Impairment
    
Accumulated Amortization
    
Net
  
Patents-foundation intellectual property
 $
1,377,863
     $
-
     $
(995,603
 )   $
382,260
  
Total
 $
1,377,863
     $
-
     $
(995,603
 )   $
382,260
  
 
December 31, 2018
  
 
Cost
    
Impairment
    
Accumulated Amortization
    
Net
  
Patents-foundation intellectual property $
1,377,863
     $
-
     $
(942,590
 )   $
435,273
  
Epidural-Apad acquired patents  
2,639,647
      
(1,539,794
 )    
(1,099,853
 )    
-
  
Total $
4,017,510
     $
(1,539,794
 )   $
(2,042,443
 )   $
435,273