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Note 14 - Expiration of Net Operating Loss Carryforwards (Details) | 12 Months Ended
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Jun. 26, 2016
Earliest Tax Year [Member] |
State net operating loss carryforwards | 2017
Latest Tax Year [Member] |
State net operating loss carryforwards | 2033

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- Definition Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY format. + References No definition available. + Details
Name: | ufi_OperatingLossCarryforwardsExpirationYear
Namespace Prefix: | ufi_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_TaxPeriodAxis=us-gaap_EarliestTaxYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TaxPeriodAxis=us-gaap_LatestTaxYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |