Supplemental Cash Flow Information (Tables)

12 Months Ended

Apr. 30, 2024

Statement of cash flows [abstract]

Summary of Non-cash Investing and Financing Transactions

Non-cash investing and financing transactions (in thousands)	April 30, 2024 $		April 30, 2023 $		April 30, 2022 $
Acquisition of building and equipment by lease		7,826		7,593		312
Settlement of convertible debentures		—		1,315		304
Fair value of shares issued pursuant to deferred acquisition payment to IPA Europe		—		—		503

Summary of Changes in Liabilities Arose From Financing Activities

The following changes in liabilities arose from financing activities:

						Non-cash changes
(in thousands)	April 30, 2023 $		Cash Flows $			Acquisition $		Settlement / Disposal $			Accretion $		Foreign exchange movements and change in estimates $		April 30, 2024 $
Deferred acquisition payments		649		(146	)		—		(294	)		19		56		284
Leases		7,267		(1,339	)		7,593		—			—		160		13,681
Total		7,916		(1,485	)		7,593		(294	)		19		216		13,965

						Non-cash changes
(in thousands)	April 30, 2022 $		Cash Flows $			Acquisition $		Settlement / Disposal $			Accretion $		Foreign exchange movements and change in estimates $			April 30, 2023 $
Deferred acquisition payments		1,237		(592	)		—		—			27		(23	)		649
Convertible debentures		1,312		—			—		(1,315	)		3		—			—
Leases		1,455		(1,337	)		7,593		—			—		(444	)		7,267
Total		4,004		(1,929	)		7,593		(1,315	)		30		(467	)		7,916

						Non-cash changes
(in thousands)	April 30, 2021 $		Cash Flows $			Acquisition $		Debt forgiven / Settlement / Disposal $			Accretion $		Foreign exchange movements and change in estimates $			April 30, 2022 $
Deferred acquisition payments		498		—			1,248		(503	)		—		(6	)		1,237
Convertible debentures		1,531		—			—		(304	)		85		—			1,312
Leases		1,926		(962	)		533		—			—		(42	)		1,455
Total		3,955		(962	)		1,781		(807	)		85		(48	)		4,004