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Note 4 - Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2017
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
   
2017
   
2016
 
Accrued
management salaries
  $
532,615
    $
201,170
 
Accrued directors
’ fees
   
182,620
     
78,070
 
Other
accrued expenses
   
18,476
     
15,000
 
Total accrued expenses
  $
733,711
    $
294,240