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Note 22 - Commitments and Contingencies (Details) | 1 Months Ended |
--- | --- | ---
Sep. 30, 2004 | Dec. 29, 2013
Commitments and Contingencies Disclosure [Abstract] |  |
Lessee Leasing Arrangements, Operating Leases, Term of Contract | 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: | instant

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

X
- Definition Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration