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Note 16 - Deferred Revenue
 12 Months Ended
Mar. 31, 2019
Statement Line Items [Line Items]  
Disclosure of revenue from contracts with customers [text block]
16.
DEFERRED REVENUE
 
    Fiscal 2019     Fiscal 2018  
Balance, beginning of year   $
38,710
     $
17,546
  
Additions to deferred revenue    
569,880
      
553,050
  
Revenue recognized during the year    
(563,922
 )    
(534,265
 )
Foreign exchange impact    
(1,440
 )    
2,379
  
Balance, end of year   $
43,228
     $
38,710