Income Taxes (Tables)

12 Months Ended

Apr. 30, 2026

Disclosure Of Income Taxes [Abstract]

Summary of Differences and Related Tax Effects

Income tax expense differs from the amount that would be computed by applying the federal and provincial statutory tax rates of (2026 – 27%, 2025 – 27%, and 2024 – 27%) to the earnings before income taxes. The reasons for the differences and related tax effects are as follows:


		2026				2025				2024
(in thousands)		$				$				$
Loss before income taxes			(15,552	)			(37,633	)			(32,162	)

Income taxes on earnings before income taxes, at above statutory rate			(4,199	)			(10,161	)			(8,684	)
Increase (decrease) in taxes resulting from:
Nondeductible (income) expenses			(180	)			8				2
Estimated SR&ED ITC			—				(181	)			(166	)
Deferred tax liability			—				(3,871	)			(1,062	)
Tax rate difference by jurisdiction			747				479				562
Tax benefits not recognized			3,368				3,183				3,072
Impairment loss			—				5,720				2,790
Prior year tax assessments and adjustments			(242	)			(234	)			(172	)
Other			56				573				797
Income taxes			(450	)			(4,484	)			(2,861	)


		2026				2025				2024
(in thousands)		$				$				$
Current income taxes			(272	)			(318	)			(103	)
Deferred income taxes			(178	)			(4,166	)			(2,758	)
Income taxes including discontinued operations			(450	)			(4,484	)			(2,861	)

Summary of Temporary Differences to Deferred Income Tax Assets and Liabilities

Temporary differences give rise to the following deferred income tax assets and liabilities:


		2026				2025
(in thousands)		$				$
Other tax pools			—				—
Capital assets net of lease liabilities			110				217
Inventory and Intangible assets			78				(467	)
Recognized deferred income tax liabilities			188				(250	)


		2026				2025
(in thousands)		$				$
Non-capital losses carried forward (expire from 2027 to 2040)			44,385				12,945
Capital losses carried forward			148				295
Resource properties			1,279				—
Section 174 - R&D costs			2,518				—
Financing costs			460				199
Other			390				—
Less: unrecognized deferred income tax asset			(49,180	)			(13,439	)
Unrecognized deferred income tax liabilities			—				—

On July 4, 2025, tax legislation known as the One Big Beautiful Bill Act ("OBBBA") was enacted in the United States. OBBBA modifies certain international tax provisions such as the tax on Global Intangible Low Taxed Income ("GILTI") and renames GILTI as Net CFC Tested Income ("NCTI"). The Company records NCTI taxes on a deferred basis. Under the OBBBA, the Company is electing to deduct their US domestic research and development costs immediately for the current period and will amortize the capitalized costs from prior years over the remaining term. The other impacts from the OBBBA were not material to the Company.