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Note 5 - Selected Financial Statement Data (Tables)

12 Months Ended

May 01, 2021

Notes Tables

Schedule of Inventory, Current [Table Text Block]

		May 1, 2021				May 2, 2020
Raw materials		$	29,913			$	35,306
Work-in-process			9,948				12,102
Finished goods			34,495				39,395
		$	74,356			$	86,803

Property, Plant and Equipment [Table Text Block]

		May 1, 2021				May 2, 2020
Land		$	1,924			$	2,183
Buildings			69,608				68,804
Machinery and equipment			98,451				104,157
Office furniture and equipment			4,103				6,151
Computer software and hardware			44,851				53,441
Equipment held for rental			—				287
Demonstration equipment			7,186				8,473
Transportation equipment			7,264				7,944
			233,387				251,440
Less accumulated depreciation			174,705				183,956
		$	58,682			$	67,484

Schedule of Accrued Liabilities [Table Text Block]

		May 1, 2021				May 2, 2020
Compensation		$	13,079			$	15,967
Taxes, other than income taxes			5,888				3,597
Accrued employee benefits			2,174				2,243
Operating lease liabilities			1,881				2,416
Short-term accrued expenses			7,455				9,270
Claims liabilities			—				2,562
Acquisition-related contingency consideration			195				571
		$	30,672			$	36,626

Schedule of Other Nonoperating Income (Expense) [Table Text Block]

		Year Ended
		May 1, 2021				May 2, 2020				April 27, 2019
Foreign currency transaction (losses) gains		$	(675	)		$	207			$	(262	)
Equity in losses of affiliates			(2,370	)			(741	)			(844	)
Other			62				(7	)			19
		$	(2,983	)		$	(541	)		$	(1,087	)

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