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Note 4 - Accounts Payable and Accrued Expenses (Tables)
3 Months Ended
Mar. 31, 2016
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
 
 
March 31, 2016
 
 
December 31, 2015
 
                 
Legal
  $ 10,723     $ 186,936  
Salaries
    48,154       41,166  
Patent expense
    31,315       29,239  
Research and development
    33,790       8,128  
Payroll taxes and employee benefits
    6,663       6,222  
Other
    3,586       4,841  
Accounting and tax expenses
    38,518       -  
                 
    $ 172,749     $ 276,532