Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Total Unifi, Inc. Shareholders' Equity [Member]	Non-controlling Interest [Member]
Balance at Jun. 26, 2016	$ 326,945	$ 1,785	$ 45,932	$ 307,065	$ (29,751)	$ 325,031	$ 1,914
Balance (in shares) at Jun. 26, 2016		17,847,000
Options exercised	2,787	$ 31	2,756			2,787
Options exercised (in shares)		313,000
Stock-based compensation	2,182		2,182			2,182
Conversion of restricted stock units		$ 7	(7)
Conversion of restricted stock units (in shares)		70,000
Excess tax benefit on stock- based compensation plans	1,060		1,060			1,060
Other comprehensive loss, net of tax	(3,129)				(3,129)	(3,129)
Deconsolidation for sale of business	(1,416)						(1,416)
Net income (loss)	32,377
Net income (loss) attributable to Unifi, Inc.	32,875			32,875		32,875
Net income (loss) attributable to non-controlling interest	(498)						$ (498)
Balance at Jun. 25, 2017	360,806	$ 1,823	51,923	339,940	(32,880)	360,806
Balance (in shares) at Jun. 25, 2017		18,230,000
Options exercised	219	$ 9	210			219
Options exercised (in shares)		86,000
Stock-based compensation	5,075		5,075			5,075
Stock-based compensation (in shares)		4,000
Conversion of restricted stock units		$ 4	(4)
Conversion of restricted stock units (in shares)		47,000
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(479)	$ (1)	(478)			(479)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(14,000)
Other comprehensive loss, net of tax	(7,653)				(7,653)	(7,653)
Adoption of ASU No.2018-02 | Accounting Standards Update No. 2018-02 [Member]	111			111		111
Net income (loss)	31,702
Net income (loss) attributable to Unifi, Inc.	31,702			31,702		31,702
Balance at Jun. 24, 2018	$ 389,781	$ 1,835	56,726	371,753	(40,533)	389,781
Balance (in shares) at Jun. 24, 2018	18,352,824	18,353,000
Options exercised	$ 483	$ 6	477			483
Options exercised (in shares)	69,000	61,000
Stock-based compensation	$ 2,892	$ 1	2,891			2,892
Stock-based compensation (in shares)		10,000
Conversion of restricted stock units		$ 6	(6)
Conversion of restricted stock units (in shares)		61,000
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions	(530)	$ (2)	(528)			(530)
Common stock withheld in satisfaction of tax withholding obligations under net share settle transactions (in shares)		(23,000)
Other comprehensive loss, net of tax	(2,696)				(2,696)	(2,696)
Adoption of the new revenue recognition guidance | ASU No. 2014-09 [Member]	459			459		459
Net income (loss)	2,456
Net income (loss) attributable to Unifi, Inc.	2,456			2,456		2,456
Balance at Jun. 30, 2019	$ 392,845	$ 1,846	$ 59,560	$ 374,668	$ (43,229)	$ 392,845
Balance (in shares) at Jun. 30, 2019	18,462,296	18,462,000