Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Details)

v2.4.1.9
Fair Value Measurements (Details) (USD $)
12 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2015
Feb. 02, 2013
Feb. 01, 2014
Jan. 28, 2012
Fair Value, Option, Quantitative Disclosures [Line Items]        
Fair Value Measurements Maximum Discount Rate 0.00%evlv_FairValueMeasurementsMaximumDiscountRate      
Document Period End Date Jan. 31, 2015      
Line of Credit, Current $ 1,736,000us-gaap_LinesOfCreditCurrent   $ 0us-gaap_LinesOfCreditCurrent  
Restricted Cash and Investments, Current 2,100,000us-gaap_RestrictedCashAndInvestmentsCurrent   2,100,000us-gaap_RestrictedCashAndInvestmentsCurrent  
Long term, Total Credit Facility 52,707,000evlv_LongtermTotalCreditFacility      
Long-term Line of Credit, Noncurrent 50,971,000us-gaap_LongTermLineOfCredit   38,000,000us-gaap_LongTermLineOfCredit  
Indefinite-Lived License Agreements 12,000,000us-gaap_IndefiniteLivedLicenseAgreements   12,000,000us-gaap_IndefiniteLivedLicenseAgreements  
Operating and Broadcast Rights [Member]        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Impairment of Intangible Assets (Excluding Goodwill)   (11,100,000)us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OperatingAndBroadcastRightsMember
0us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OperatingAndBroadcastRightsMember
 
Indefinite-Lived License Agreements $ 12,000,000us-gaap_IndefiniteLivedLicenseAgreements
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OperatingAndBroadcastRightsMember
  $ 12,000,000us-gaap_IndefiniteLivedLicenseAgreements
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OperatingAndBroadcastRightsMember
$ 12,000,000us-gaap_IndefiniteLivedLicenseAgreements
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OperatingAndBroadcastRightsMember