Quarterly Results (Unaudited) - Schedule of Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Jun. 25, 2017		Mar. 26, 2017		Dec. 25, 2016		Sep. 25, 2016		Jun. 26, 2016		Mar. 27, 2016		Dec. 27, 2015		Sep. 27, 2015		Jun. 25, 2017	Jun. 26, 2016	Jun. 28, 2015
Quarterly Financial Data [Abstract]
Net sales	$ 171,250		$ 160,896		$ 155,155		$ 159,969		$ 163,858		$ 161,278		$ 156,336		$ 162,165		$ 647,270	$ 643,637	$ 687,121
Gross profit	27,357		21,130		22,130		23,547		27,471		23,364		21,813		20,984		94,164	93,632	90,705
Net income including non-controlling interest	9,704		9,177		4,354		9,142		9,915		9,275		6,194		7,786		32,377	33,170	40,466
Less: net loss attributable to non-controlling interest					(237)		(261)		(322)		(414)		(270)		(239)		(498)	(1,245)	(1,685)
Net income attributable to Unifi, Inc.	$ 9,704	[1],[2],[3]	$ 9,177	[1],[2],[3]	$ 4,591	[1],[2],[3]	$ 9,403	[1],[2],[3]	$ 10,237	[4]	$ 9,689	[4]	$ 6,464	[4]	$ 8,025	[4]	$ 32,875	$ 34,415	$ 42,151
Basic (in dollars per share)	$ 0.53	[5]	$ 0.50	[5]	$ 0.25	[5]	$ 0.52	[5]	$ 0.57	[5]	$ 0.54	[5]	$ 0.36	[5]	$ 0.45	[5]	$ 1.81	$ 1.93	$ 2.32
Diluted (in dollars per share)	$ 0.52	[5]	$ 0.50	[5]	$ 0.25	[5]	$ 0.51	[5]	$ 0.56	[5]	$ 0.53	[5]	$ 0.35	[5]	$ 0.43	[5]	$ 1.78	$ 1.87	$ 2.24

[1] Net income attributable to Unifi, Inc. for the first three quarters of fiscal 2017 includes comparatively lower earnings from equity affiliates.

[2] Net income attributable to Unifi, Inc. for the quarter ended December 25, 2016 includes the loss on sale of business of $1,662.

[3] Net income attributable to Unifi, Inc. for the quarters ended September 25, 2016, March 26, 2017 and June 25, 2017 includes a comparatively lower effective tax rate.

[4] Net income attributable to Unifi, Inc. for the quarters ended June 26, 2016, March 27, 2016 and December 27, 2015 includes the unfavorable impact of key employee transition costs of approximately $840, $260 and $400, respectively.

[5] Income per share is computed independently for each of the periods presented. The sum of the income per share amounts for the quarters may not equal the total for the year.