Pension - Net benefit income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2026	Jan. 25, 2025	Jan. 31, 2026	Jan. 25, 2025
Pension
Interest cost	$ 31	$ 28	$ 93	$ 85
Net periodic benefit cost	$ 31	$ 28	$ 93	$ 85