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OPTIONS AND WARRANTS TO PURCHASE COMMON STOCK (Tables)
9 Months Ended
Sep. 30, 2020
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule Of Warrants Or Rights [Table Text Block]
A summary of the status and changes of the warrants issued for the nine months ended September 30, 2020:
 
  
Shares Issuable
    
  
upon Exercise of
  
Weighted Average
 
  
Outstanding Warrants
  
Exercise Price
 
       
Outstanding at January 1, 2020
  
26,688,373
  
$
0.15
 
Issued
  
-
   
-
 
Exercised
  
-
     
Forfeited
  
-
   
-
 
Outstanding at September 30, 2020
  
26,688,373
  
$
0.15
 
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
A summary of the status of the warrants outstanding and exercisable at September 30, 2020 is presented below:
 
   
Warrants Outstanding and Exercisable
 
   
Shares Issuable
  
Weighted Average
    
   
upon Exercise of
  
Remaining
  
Weighted Average
 
Exercise Price
  
Outstanding Warrants
  
Contractual Life (years)
  
Exercise Price
 
$
1.15
   
461,340
   
0.58
  
$
1.15
 
$
0.25
   
3,283,283
   
0.74
  
$
0.25
 
$
0.04
   
2,068,750
   
1.93
  
$
0.04
 
$
0.10
   
11,000,000
   
2.20
  
$
0.10
 
$
0.15
   
9,875,000
   
0.73
  
$
0.15
 
     
26,688,373
   
1.43
  
$
0.15
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
A summary of the status and changes of the options granted under stock option plans and other agreements during the nine months ended September 30, 2020:
 
  
Shares Issued
  
Weighted
 
  
Upon Exercise of
  
Average
 
  
Options
  
Exercise Price
 
       
Outstanding at December 31, 2019
  
60,676,568
  
$
0.26
 
Granted
  
-
   
-
 
Exercised
  
-
   
-
 
Forfeited
  
(100,000)
   
0.22
 
Outstanding at September 30, 2020
  
60,576,568
  
$
0.26
 
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
A summary of the status of the options outstanding at September 30, 2020 is presented below:
 
  
Options Outstanding
  
Options Exercisable
 
 Range of
per share
exercise
price
 
Shares
  
Weighted
average
remaining
contractual
life
  
Per share
weighted
average
exercise
price
  
Shares
  
Weighted
average
remaining
contractual
life
  
Per share
weighted
average
exercise
price
 
$0.04 - $0.08
  
42,403,623
   
6.93
  
$
0.06
   
34,861,956
   
6.91
  
$
0.06
 
$0.10 - $0.84
  
13,230,885
   
2.19
   
0.42
   
13,230,885
   
2.19
   
0.42
 
$1.10 - $1.90
  
4,942,060
   
1.97
   
1.63
   
4,942,060
   
1.97
   
1.63
 
                         
   
60,576,568
   
5.49
  
$
0.26
   
53,034,901
   
5.27
  
$
0.29