Note 2 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Mar. 31, 2022

Notes To Financial Statements [Abstract]

Property, Plant and Equipment, Useful Lives and Rates

The estimated useful lives and rates for the current and comparative periods are as follows:

Assets	Method			Rate
Furniture and office equipment	Declining balance	20	%	to			30	%
Computer equipment	Declining balance				30	%
Laboratory equipment	Declining balance				30	%
Production equipment	Declining balance	10	%	to			30	%

Schedule of Intangible Assets, Useful Life

he estimated useful lives for the current and comparative periods are as follows:

Assets	Period (years)
Patents		20
License	8 to 14