Investments in Unconsolidated Affiliates - Schedule of Unaudited, Condensed Balance Sheet Information for Unconsolidated Affiliates (Details) - USD ($) $ in Thousands	Sep. 29, 2024	Jun. 30, 2024	Oct. 01, 2023	Jul. 02, 2023
Schedule Of Equity Method Investments [Line Items]
Current assets	$ 251,216	$ 248,933
Current liabilities	76,270	76,566
Shareholders’ equity and capital accounts	259,709	263,385	$ 305,029	$ 323,610
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule Of Equity Method Investments [Line Items]
Current assets	5,954	5,758
Non-current assets	453	458
Current liabilities	3,208	3,009
Shareholders’ equity and capital accounts	3,199	3,207
UNIFI’s portion of undistributed earnings	$ 1,540	$ 1,544