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Note 5 - Intangible Assets (Tables)
9 Months Ended
Nov. 30, 2018
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
   
November 30
,
   
February 28,
 
   
2018
   
2018
 
Licenses
  $
200,000
    $
200,000
 
Less: accumulated amortization
   
(200,000
)
   
(114,583
)
Net intangible assets
  $
-0-
    $
85,417