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Warrants (Tables)

12 Months Ended

Apr. 30, 2020

Warrant [Member]

Schedule of Fair Value Assumptions Used

The Company determined the fair value using the Black-Scholes option pricing model with the following assumptions for the period ended April 30, 2020 and 2019:

		April 30, 2020				April 30, 2019
Dividend rate			0.0	%			0.0	%
Risk-free rate			0.17% - 0.19	%			2.2% - 2.3	%
Expected life (years)			1.2 - 1.6				2.2 - 2.6
Expected volatility			81.8% - 112.7	%			110.0% - 153.4	%

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- Definition

Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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