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Note 8 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
2019
   
2018
 
Deferred tax assets (liabilities)
               
Net operating loss carryforwards
  $
916,200
    $
1,934,300
 
Accrued commissions
   
9,000
     
102,600
 
Accrued vacation
   
21,200
     
24,500
 
Fixed assets
   
(23,500
)    
(24,100
)
Other
   
3,700
     
6,400
 
Subtotal
   
926,600
     
2,043,700
 
Valuation allowance
   
(926,600
)    
(2,043,700
)
Total
  $
-
    $
-
 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
     
December 31,
 
     
2019
   
2018
 
Loss before taxes
  $
(717,246
)   $
(51,034
)
Income tax benefit on above amount at federal statutory rate
  $
(150,600
)   $
(10,700
)
State income tax benefit, net of federal benefit
   
(35,900
)    
(2,600
)
Permanent differences
   
2,900
     
8,600
 
Other
   
(1,300
)    
(1,900
)
NOL Expirations
   
1,302,000
     
2,015,100
 
Change in valuation allowance
   
(1,117,100
)    
(2,008,500
)
Provision for income taxes
  $
-
    $
-
 
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
     
December 31,
 
Current income taxes
 
2019
   
2018
 
Federal
  $
-
    $
-
 
State
   
-
     
-
 
Benefit from utilization of net operating losses
   
-
     
-
 
Subtotal
   
-
     
-
 
Deferred taxes
   
-
     
-
 
Provision for income taxes
  $
-
    $
-