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Note 8 - Accounts Payable and Accrued Liabilities (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
   
Accounts Payable
 
 
 
Accrued Liabilities
 
   
December 31, 2020
   
December 31, 2019
 
 
 
December 31, 2020
   
December 31, 2019
 
Current accounts payable
  $
241,963
    $
338,383
 
Accrued liabilities
  $
188,554
    $
178,479
 
Other accounts
payable (a)
   
651,220
     
254,360
 
Deferred Compensation to
Directors (b)
   
368,372
     
-
 
Total
  $
893,183
    $
592,743
 
Total
  $
556,926
    $
178,479
 
Schedule of Accrued Liabilities [Table Text Block]
   
 
December 31,
 
   
2020
   
2019
 
Payroll and related taxes
  $
48,701
    $
40,011
 
Professional fees
   
139,853
     
101,468
 
Other
   
-
     
37,000
 
Total
  $
188,554
    $
178,479