SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Issued Accounting Standards (Details) - USD ($) $ in Thousands	12 Months Ended
Jul. 28, 2018	Jul. 29, 2017
Accounting Policies [Abstract]
Reclassification due to the adoption of ASU 2018-02	$ (1,594)	$ 0

Amount of reclassification adjustment from accumulated other comprehensive income for stranded tax effects.

No definition available.

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Namespace Prefix:	vlgea_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration