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Note 17 - Defined Contribution Plan (Details Textual) - Retirement Savings Plan [Member] | 12 Months Ended
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Jun. 26, 2016
Contribution for the First Three Percent [Member] |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 100.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 3.00%
Contribution for the Next Two Percent [Member] |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match | 50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 2.00%

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage employer matches of the employee's percentage contribution matched. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DefinedContributionPlanNameAxis=ufi_RetirementSavingsPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=ufi_ContributionForTheFirstThreePercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=ufi_ContributionForTheNextTwoPercentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |