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Note 28 - Quarterly Results (Unaudited) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended | 0 Months Ended | 3 Months Ended
--- | --- | --- | --- | ---
Jun. 24, 2012 | Dec. 25, 2011 | Jun. 30, 2013 | Jun. 24, 2012 | Jun. 26, 2011 | Oct. 06, 2011 Repreve Renewables, LLC [Member] | Dec. 25, 2011 Repreve Renewables, LLC [Member] | Dec. 25, 2011 Repreve Renewables, LLC [Member] Second Quarter [Member] | Jun. 24, 2012 Fourth Quarter [Member]
Note 28 - Quarterly Results (Unaudited) (Details) [Line Items] |  |  |  |  |  |  |  |  |
Additional Ownership Interest Acquired |  |  |  |  |  |  | 20.00% |  |
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Loss |  | $ 3,656 |  | $ 3,656 |  | $ 3,656 |  | $ 3,656 |
Gains (Losses) on Extinguishment of Debt and Related Expenses |  |  | (1,102) | (3,203) | (3,337) |  |  |  | (2,741)
Valuation Allowance Reduction Recorded to (Benefit) Provision for Income Tax Due to Change In Realization Assumption | $ (6,017) |  |  | $ (6,017) |  |  |  |  |

X
- Definition Additional ownership interest acquired. + References No definition available. + Details
Name: | ufi_AdditionalOwnershipInterestAcquired
Namespace Prefix: | ufi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount represents the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment. Includes the write off of related debt issue costs. + References No definition available. + Details
Name: | ufi_GainsLossesOnExtinguishmentOfDebtAndRelatedExpenses
Namespace Prefix: | ufi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: | ufi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of the reduction of the valuation allowance recorded to the (benefit) provision for income tax in the period for a change in assumption related to the realization of certain deferred tax assets. + References No definition available. + Details
Name: | ufi_ValuationAllowanceReductionRecordedToBenefitProvisionForIncomeTaxDueToChangeInRealizationAssumption
Namespace Prefix: | ufi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition In a business combination achieved in stages, this element represents the amount of loss recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination. + References No definition available. + Details
Name: | us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration