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Basis of Presentation; Condensed Notes (Policies) | 9 Months Ended
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Mar. 25, 2018
Accounting Policies [Abstract] |
Fiscal Period | The fiscal quarter for Unifi, Inc. and its subsidiary in El Salvador ended on March 25, 2018, the last Sunday in March. The fiscal quarter for Unifi, Inc.’s Brazilian, Chinese, Colombian and Sri Lankan subsidiaries ended on March 31, 2018. There were no significant transactions or events that occurred between Unifi, Inc.’s fiscal quarter end and such wholly owned subsidiaries’ subsequent fiscal quarter end. The three-month and nine-month periods ended March 25, 2018 and March 26, 2017 each consisted of 13 and 39 fiscal weeks, respectively.
Reclassification | Reclassifications Certain reclassifications of prior years’ data have been made to conform to the current year presentation.

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- Definition Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=96868048&loc=d3e5291-111683 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.3A-03(b)) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355100-122828 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.3A-02(b)) -URI http://asc.fasb.org/extlink&oid=27015204&loc=d3e355033-122828 + Details
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- Definition Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755 + Details
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