Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 25, 2018	Mar. 26, 2017	Mar. 25, 2018	Mar. 26, 2017
Earnings Per Share [Abstract]
Net income attributable to Unifi, Inc.	$ 176	$ 9,177	$ 20,938	$ 23,171
Basic weighted average shares	18,309	18,210	18,275	18,105
Net potential common share equivalents – stock options and RSUs	392	283	342	315
Diluted weighted average shares	18,701	18,493	18,617	18,420
Excluded from diluted weighted average shares:
Anti-dilutive common share equivalents	96	261	163	315