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Note 15 - Shareholders' Equity (Detail) - Repurchases and Retirements of Common Stock (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 40 Months Ended
--- | --- | ---
Mar. 24, 2013 | Nov. 30, 2003
| 571 | 1,064
(in Dollars per share) | $ 16.93 |
| 571 |
(in Dollars) | $ 40,330 |

X
- Definition Maximum approximate value that may yet be repurchased under the plans or programs. + References No definition available. + Details
Name: | ufi_MaximumApproximateValueThatMayYetBeRepurchasedUnderThePlansOrPrograms
Namespace Prefix: | ufi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Stock repurchased and retired during period, average price paid per share. + References No definition available. + Details
Name: | ufi_StockRepurchasedAndRetiredDuringPeriodAveragePricePaidPerShare
Namespace Prefix: | ufi_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total number of shares repurchased as part of publicly announced plans or programs. + References No definition available. + Details
Name: | ufi_TotalNumberOfSharesRepurchasedAsPartOfPubliclyAnnouncedPlansOrPrograms
Namespace Prefix: | ufi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
Name: | us-gaap_StockRepurchasedAndRetiredDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration