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Selected Financial Statement Data (Tables)

12 Months Ended

Apr. 27, 2024

Inventory Disclosure [Abstract]

Schedule of inventory, current

Inventories consisted of the following:

			April 27, 2024						April 29, 2023
Raw materials			$	66,900					$	81,627
Work-in-process			13,848						14,155
Finished goods			57,260						53,666
			$	138,008					$	149,448

Property, plant and equipment

Property and equipment, net consisted of the following:

			April 27, 2024						April 29, 2023
Land			$	2,895					$	1,996
Buildings			71,670						71,222
Machinery and equipment			131,983						126,164
Office furniture and equipment			3,765						4,112
Computer software and hardware			46,135						44,700
Construction in Process			5,064						2,805
Demonstration equipment			7,094						7,432
Transportation equipment			7,667						7,057
			276,273						265,488
Less accumulated depreciation			204,521						193,341
			$	71,752					$	72,147

Schedule of accrued liabilities

Accrued expenses consisted of the following:

			April 27, 2024						April 29, 2023
Compensation			$	27,365					$	17,466
Taxes, other than income taxes			3,410						3,390
Accrued employee benefits			3,871						3,953
Operating lease liabilities			1,984						2,253
Short-term accrued expenses			6,398						8,943
			$	43,028					$	36,005

Schedule of other nonoperating income (expense)

Other expense and debt issuance costs write-off, net consisted of the following:

			Year Ended
			April 27, 2024						April 29, 2023						April 30, 2022
Foreign currency transaction gains (losses)			$	284					$	479					$	(227)
Equity in losses of affiliates			(3,764)						(3,332)						(2,970)
Impairment of equity method investees			(6,359)						(4,473)						—
Debt issuance costs write off			(3,353)						—						—
Other			96						115						88
			$	(13,096)					$	(7,211)					$	(3,109)

Investment Income

Interest (expense) income, net consisted of the following:

			Year Ended
			April 27, 2024						April 29, 2023						April 30, 2022
Interest expense:
Interest expense			$	(3,397)					$	(1,127)					$	(49)
Debt issuance amortization expense			(1,551)						—						—
Total interest expense			(4,948)						(1,127)						(49)
Interest income:
Interest income			1,530						207						220
Interest (expense) income, net			$	(3,418)					$	(920)					$	171

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