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Selected Financial Statement Data (Tables)

12 Months Ended

Apr. 30, 2022

Inventory Disclosure [Abstract]

Schedule of inventory, current

Inventories consisted of the following:

			April 30, 2022						May 1, 2021
Raw materials			$	71,410					$	29,913
Work-in-process			14,238						9,948
Finished goods			48,744						34,495
			$	134,392					$	74,356

Property, plant and equipment

Property and equipment, net consisted of the following:

			April 30, 2022						May 1, 2021
Land			$	1,899					$	1,924
Buildings			69,170						69,608
Machinery and equipment			110,079						98,451
Office furniture and equipment			4,098						4,103
Computer software and hardware			46,922						44,851
Construction in Process			5,792						—
Demonstration equipment			7,260						7,186
Transportation equipment			7,065						7,264
			252,285						233,387
Less accumulated depreciation			185,520						174,705
			$	66,765					$	58,682

Schedule of accrued liabilities

Accrued expenses consisted of the following:

			April 30, 2022						May 1, 2021
Compensation			$	15,944					$	13,079
Taxes, other than income taxes			6,741						5,888
Accrued employee benefits			3,227						2,174
Operating lease liabilities			2,309						1,881
Short-term accrued expenses			6,738						7,455
Acquisition-related contingency consideration			—						195
			$	34,959					$	30,672

Schedule of other nonoperating income (expense)

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

			Year Ended
			April 30, 2022						May 1, 2021						May 2, 2020
Foreign currency transaction (losses) gains			$	(227)					$	(675)					$	207
Equity in losses of affiliates			(2,970)						(2,370)						(741)
Other			88						62						(7)
			$	(3,109)					$	(2,983)					$	(541)

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