Stock based compensation - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 28, 2026	Jun. 29, 2025	Jun. 30, 2024
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	$ 11,256	$ 11,891	$ 10,688
Location, Statement of Income, Balance [Axis]: us-gaap:CommunicationsAndInformationTechnology
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	901	951	855
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	5,177	5,470	4,917
Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	5,178	5,470	4,916
Stock options
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	2,634	4,729	4,422
Restricted stock awards
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	$ 8,622	$ 7,162	$ 6,266