Income taxes - Schedule of Changes in Valuation Allowances of Deferred Tax Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jun. 24, 2022
Reconciliation Of Nol Deferred Tax Assets Valuation Allowance [Roll Forward]
Beginning Balance	$ 3,824	$ 4,934	$ 2,061
Additional	3,613	498	2,873
Reduction	(3,824)	(1,608)
Ending Balance	$ 3,613	$ 3,824	$ 4,934