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Note 22 - Commitments and Contingencies (Details) | 0 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2004 | Dec. 28, 2014
Commitments and Contingencies Disclosure [Abstract] |  |
The Term of A Former Ground Lease | 99 years |
Number of Years of Monitoring and Reporting Costs of an Individual Site |  | 7 years

X
- Definition Number of years of monitoring and reporting costs of an individual site for environmental remediation. + References No definition available. + Details
Name: | ufi_NumberOfYearsOfMonitoringAndReportingCostsOfAnIndividualSite
Namespace Prefix: | ufi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The term of a former ground lease with E.I. DuPont de Nemours. + References No definition available. + Details
Name: | ufi_TheTermOfAFormerGroundLease
Namespace Prefix: | ufi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration