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Nature of Operations - Additional Information (Details) - CAD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023	Apr. 30, 2023
Disclosure Of Nature Of Operations [Abstract]
Operating losses	$ 2,940	$ 4,699	$ 9,132	$ 21,431
Accumulated deficit	82,220		82,220		$ 73,088
Cash on hand	$ 6,300		$ 6,300

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The amount of cash held by the entity. This does not include demand deposits.

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The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]

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