The amount of cash balances held at banks.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of current investments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The amount of cash and cash equivalents that the entity does not separately disclose in the same statement or note. [Refer: Cash and cash equivalents]

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A classification of cash equivalents representing short-term investments. [Refer: Cash equivalents]

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

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Percentage of interest on short term investment.

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Percentage of interest on short term investment.

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Cash and Cash Equivalents and Short-term investments (Narrative) (Details)	12 Months Ended
	Apr. 30, 2024 CAD ($)	Apr. 30, 2023 CAD ($)	Apr. 30, 2024 MXN ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2023 MXN ($)	Apr. 30, 2023 USD ($)
Disclosure Of Cash And Cash Equivalents And Short Term Investments [Line Items]
Operating bank accounts	$ 37,548,304	$ 12,608,704
Current investments	30,000,000	$ 6,789,000				$ 5,000,000
Percentage of interest on GIC investment certificate		5.30%
Short-term guaranteed investment	$ 0	$ 40,115,000
Other cash and cash equivalents			$ 441,705	$ 2,226,985	$ 6,877,311	$ 7,797,176
Bottom of range [Member]
Disclosure Of Cash And Cash Equivalents And Short Term Investments [Line Items]
Percentage of interest on GIC investment certificate	5.24%
Percentage of interest on GIC investment certificate with maturities of more than 90 days		5.18%
Top of range [Member]
Disclosure Of Cash And Cash Equivalents And Short Term Investments [Line Items]
Percentage of interest on GIC investment certificate	5.33%
Percentage of interest on GIC investment certificate with maturities of more than 90 days		5.24%