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Note 32 - Supplemental Cash Flow Information
 12 Months Ended
Mar. 31, 2019
Statement Line Items [Line Items]  
Disclosure of changes in non-cash working capital [text block]
32.
SUPPLEMENTAL CASH FLOW INFORMATION
 
(a)
Adjustments required to reflect net cash receipts from gas sales
 
    2019     2018  
Changes in:                
Accrued gas receivable   $
2,256
     $
459
  
Gas delivered in excess of consumption    
(405
 )    
516
  
Accrued gas payable    
676
      
(276
 )
Deferred revenue    
1,659
      
(3,575
 )
    $
4,186
     $
(2,876
 )
 
 
(b)
Net change in working capital
 
    As at
March 31, 2019		     As at
March 31, 2018		  
Accounts receivable and unbilled revenue   $
18,242
   $
(108,900
 )
Gas in storage    
(601
 )    
538
  
Prepaid expenses and deposits    
(88,184
 )    
(15,534
 )
Provisions    
4,309
      
(3,501
 )
Trade and other payables    
53,261
      
90,972
  
    $
(12,973
 )   $
(36,425
 )