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NET INCOME (LOSS) PER SHARE - Additional Information (Details)
In Thousands, unless otherwise specified
 6 Months Ended
Jan. 24, 2015
Jan. 25, 2014
Earnings Per Share [Abstract]    
Number of common stock classes 2vlgea_NumberofClassesofCommonStock  
Common stock cash dividends, percent Class A is entitled greater than Class B 54.00%vlgea_DividendsCommonStockCashPercentClassAisEntitledGreaterthanClassB  
Conversion of stock, conversion ratio 1vlgea_ConversionofStockConversionRatio  
Common Class A [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Class A shares excluded from computation of earnings per share 447us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_CommonClassAMember		 5us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_CommonClassAMember
Restricted Stock Units (RSUs) [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Class A shares excluded from computation of earnings per share 290us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockUnitsRSUMember		 299us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockUnitsRSUMember