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

Note 3 - Significant Accounting Policies - Estimated Useful Lives and Rates (Details)

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Note 3 - Significant Accounting Policies - Estimated Useful Lives and Rates (Details)
12 Months Ended
Mar. 31, 2018
Patents [member]  
Statement Line Items [Line Items]  
Useful life, intangible assets (Year) 20 years
Computer equipment [member]  
Statement Line Items [Line Items]  
Furniture and office equipment 30.00%
Laboratory equipment [member]  
Statement Line Items [Line Items]  
Furniture and office equipment 30.00%
Production equipment [member]  
Statement Line Items [Line Items]  
Production equipment (in years) (Year) 10 years
Bottom of range [member] | Licences [member]  
Statement Line Items [Line Items]  
Useful life, intangible assets (Year) 8 years
Bottom of range [member] | Furniture and office equipment [member]  
Statement Line Items [Line Items]  
Furniture and office equipment 20.00%
Top of range [member] | Licences [member]  
Statement Line Items [Line Items]  
Useful life, intangible assets (Year) 14 years
Top of range [member] | Furniture and office equipment [member]  
Statement Line Items [Line Items]  
Furniture and office equipment 30.00%