Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Note 16 - Share-based Payments (Details Textual)

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Note 16 - Share-based Payments (Details Textual)
1 Months Ended 12 Months Ended 13 Months Ended 25 Months Ended
Feb. 21, 2017
CAD ($)
Mar. 31, 2017
CAD ($)
Mar. 31, 2018
CAD ($)
shares
Feb. 28, 2017
CAD ($)
Feb. 29, 2016
CAD ($)
Mar. 31, 2017
CAD ($)
Mar. 31, 2018
shares
Statement Line Items [Line Items]              
Option life, share options granted     5.89 4.94 4.2 4.94  
Number of share options granted in share-based payment arrangement   1,121,500 1,300,400 109,188 1,300,400  
Number of share options exercised in share-based payment arrangement         250    
Weighted average share price $ 2.65            
Expense from share-based payment transactions with employees   $ 86,000 $ 929,000 $ 588,000 $ 309,000 $ 674,000  
Corporation stock option plan [member]              
Statement Line Items [Line Items]              
Maximum number of shares authorized | shares     2,940,511       2,940,511
Maximum number of shares authorized as percentage     20.00%       20.00%
Option life, share options granted             10
Weighted average grant date fair value options granted in share-based payment arrangement     $ 1.22 1.40 $ 2.14 $ 1.40  
Number of share options granted in share-based payment arrangement   0     0 0  
Number of share options exercised in share-based payment arrangement     0     0  
Weighted average share price         $ 4.20    
Expense from share-based payment transactions with employees   $ 86,000 $ 929,000 $ 588,000 234,000 $ 674,000  
Corporation stock option plan [member] | Related parties [member]              
Statement Line Items [Line Items]              
Maximum number of shares authorized as percentage     10.00%       10.00%
Corporation stock option plan [member] | Shareholders exceeding 5% issued and outstanding stock [member]              
Statement Line Items [Line Items]              
Maximum number of shares authorized as percentage     5.00%       5.00%
Corporation stock option plan [member] | Consultants [member]              
Statement Line Items [Line Items]              
Maximum number of shares authorized as percentage     2.00%       2.00%
Corporation stock option plan [member] | Bottom of range [member]              
Statement Line Items [Line Items]              
Description of vesting period, share option granted             18
Corporation equity incentive plan [member]              
Statement Line Items [Line Items]              
Expense from share-based payment transactions with employees   $ 0 $ 0   $ 64,000 $ 0  
Number of other equity instruments outstanding in share-based payment arrangement at end of period   0 0 0   0 0