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Note 6 - Notes and Leases Payable (Tables)
 3 Months Ended
Mar. 31, 2018
Notes Tables  
Schedule of Debt [Table Text Block]
   
March 31,
    
December 31,
  
   
2018
    
2017
  
                 
Note payable for equipment, payable $1,339 monthly, including interest (a)
   $
9,210
     $
13,073
  
Note payable to insurance companies, payable $5,045 - $17,959 monthly, (b) and (c)
    
109,042
      
199,061
  
     
118,252
      
212,134
  
Less: Current Portion
    
(118,252
)
    
(212,134
)
Notes Payable, Long-Term Portion
   $
- 0 -
     $
- 0 -