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SUMMARY OF WARRANTS GRANTED VALUATION USING BLACK-SCHOLES PRICING METHOD (Details) - Warrant [Member] - Valuation Technique, Option Pricing Model [Member]	12 Months Ended
	Apr. 30, 2021	Apr. 30, 2020
Measurement Input, Expected Term [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Measurement input, term	2 years	2 years
Measurement Input, Expected Term [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Measurement input, term	10 years	10 years
Measurement Input, Price Volatility [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Alternative Investment, Measurement Input	1.48	1.21
Measurement Input, Price Volatility [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Alternative Investment, Measurement Input	2.80	1.44
Measurement Input, Risk Free Interest Rate [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Alternative Investment, Measurement Input	0.0012	0.0036
Measurement Input, Risk Free Interest Rate [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Alternative Investment, Measurement Input	0.0164	0.0243
Measurement Input, Expected Dividend Rate [Member]
Property, Plant and Equipment [Line Items]
Alternative Investment, Measurement Input	0	0

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- Definition

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+ References

No definition available.

+ Details

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- Definition

Value of input used to measure alternative investment.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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