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Note 10 - Other Non-current Assets (Details) - USD ($) $ in Thousands	Jun. 28, 2015	Jun. 29, 2014
Disclosure Text Block Supplement [Abstract]
Accumulated Depreciation, Biomass Foundation and Feedstock	$ 55	$ 0

X

- Definition

Amount of accumulated depreciation for biomass foundation and feedstock.

+ References

No definition available.

+ Details

Name:	ufi_AccumulatedDepreciationBiomassFoundationAndFeedstock
Namespace Prefix:	ufi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureTextBlockSupplementAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration