INTERIM CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Jul. 31, 2020	Apr. 30, 2020
Statement of Financial Position [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current	$ 377,514	$ 317,230
Preferred Stock, Par Value Per Share	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	100,000,000	100,000,000
Preferred Stock, Shares Issued
Preferred Stock, Shares Outstanding
Common Stock, Par Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares Authorized	10,000,000	10,000,000
Common Stock, Shares, Issued	6,411,063	6,103,612

Amount of allowance for credit loss on accounts receivable, classified as current.

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-Name Accounting Standards Codification
-Topic 210
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