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Pension - Net benefit income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Oct. 30, 2021	Oct. 30, 2021
Pension
Expected return on plan assets	$ 31	$ 63
Interest cost	(15)	(30)
Foreign currency exchange rate changes	72	6
Net periodic benefit cost	$ 88	$ 39

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