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Note 6 - Accrued Expenses
3 Months Ended
Mar. 31, 2018
Notes to Financial Statements  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
6.
     Accrued Expenses
 
Accrued expenses as shown on the accompanying Condensed Consolidated Balance Sheets is composed of the following as of
March 31, 2018
and
December 31, 2017:
 
   
March 31,
2018
   
December 31,
2017
 
Accrued management salaries
  $
623,289
    $
532,615
 
Accrued directors’ fees
   
214,819
     
182,620
 
Other accrued expenses
   
26,250
     
18,476
 
Total accrued expenses
  $
864,358
    $
733,711