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

Note 16 - Share-based Payments - Outstanding and Exercisable Options (Details)

v3.8.0.1
Note 16 - Share-based Payments - Outstanding and Exercisable Options (Details)
Mar. 31, 2018
CAD ($)
Mar. 31, 2017
CAD ($)
Feb. 28, 2017
CAD ($)
Feb. 29, 2016
CAD ($)
Feb. 28, 2015
Statement Line Items [Line Items]          
Weighted average remaining contractual life outstanding 7.54        
Number of options outstanding 2,284,388 1,424,788 1,427,288 454,151 429,625
Weighted average exercise price exercisable $ 1.92 $ 6.44 $ 6.49 $ 15.28  
Number of options exercisable 591,113 238,482 240,982 375,563  
Range one of exercises prices [member]          
Statement Line Items [Line Items]          
Weighted average remaining contractual life outstanding 5.11        
Number of options outstanding 525,000        
Weighted average exercise price exercisable $ 1.56        
Number of options exercisable 306,250        
Range one of exercises prices [member] | Bottom of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 1.56        
Range one of exercises prices [member] | Top of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 1.58        
Range two of exercises prices [member]          
Statement Line Items [Line Items]          
Weighted average remaining contractual life outstanding 8.9        
Number of options outstanding 415,000        
Weighted average exercise price exercisable $ 1.65        
Number of options exercisable 141,667        
Range two of exercises prices [member] | Bottom of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 1.59        
Range two of exercises prices [member] | Top of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 1.71        
Range three of exercises prices [member]          
Statement Line Items [Line Items]          
Weighted average remaining contractual life outstanding 9.2        
Number of options outstanding 992,500        
Weighted average exercise price exercisable        
Number of options exercisable        
Range three of exercises prices [member] | Bottom of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 1.72        
Range three of exercises prices [member] | Top of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 1.88        
Range four of exercises prices [member]          
Statement Line Items [Line Items]          
Weighted average remaining contractual life outstanding 5.16        
Number of options outstanding 286,700        
Weighted average exercise price exercisable $ 1.99        
Number of options exercisable 95,568        
Range four of exercises prices [member] | Bottom of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 1.89        
Range four of exercises prices [member] | Top of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 2.25        
Range five of exercises prices [member]          
Statement Line Items [Line Items]          
Weighted average remaining contractual life outstanding 3.67        
Number of options outstanding 65,188        
Weighted average exercise price exercisable $ 4.87        
Number of options exercisable 47,628        
Range five of exercises prices [member] | Bottom of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 2.26        
Range five of exercises prices [member] | Top of range [member]          
Statement Line Items [Line Items]          
Exercise price $ 6.50