Intangible Assets

9 Months Ended

Jan. 31, 2024

Changes in the value of the intangible assets during the nine months ended January 31, 2024 and the year ended April 30, 2023 are as follows:


(in thousands)	Internally Generated Development Costs $			Intellectual Property $			Proprietary Processes $			Certifications $			Customer List $			Total $
Cost:
Balance, April 30, 2022		33			31,914			7,359			126			180			39,612
Foreign exchange		—			3,229			744			13			18			4,004
Balance, April 30, 2023		33			35,143			8,103			139			198			43,616
Disposals		—			—			—			—			(193	)		(193	)
Foreign exchange		—			(929	)		(214	)		(4	)		(5	)		(1,152	)
Balance, January 31, 2024		33			34,214			7,889			135			—			42,271

Accumulated Amortization:
Balance, April 30, 2022		8			1,693			5,491			—			30			7,222
Amortization		7			2,710			1,477			128			92			4,414
Foreign exchange		(1	)		372			665			9			10			1,055
Balance, April 30, 2023		14			4,775			7,633			137			132			12,691
Amortization		5			1,999			195			3			65			2,267
Disposals		—			—			—			—			(193	)		(193	)
Foreign exchange		—			(140	)		(202	)		(5	)		(4	)		(351	)
Balance, January 31, 2024		19			6,634			7,626			135			—			14,414

Net Book Value:
April 30, 2023		19			30,368			470			2			66			30,925
January 31, 2024		14			27,580			263			—			—			27,857