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Note 23 - Raw Material Purchases under Supply Agreement (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 26, 2016 | Jun. 28, 2015 | Jun. 29, 2014
UNF [Member] |  |  |
Raw material purchases under supply agreement | $ 2,828 | $ 3,676 | $ 9,582
UNF America [Member] |  |  |
Raw material purchases under supply agreement | 24,319 | 29,922 | 24,223
UNF and UNF America [Member] |  |  |
Raw material purchases under supply agreement | $ 27,147 | $ 33,598 | $ 33,805

X
- Definition Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=ufi_UNFMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ufi_UNFAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ufi_UNFAndUNFAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |