Annual report pursuant to Section 13 and 15(d)

Related Party Transactions (Details)

v2.4.1.9
Related Party Transactions (Details) (USD $)
0 Months Ended 12 Months Ended
Nov. 17, 2014
May 16, 2013
May 12, 2012
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Jan. 02, 2011
Related Party Transaction [Line Items]              
payments to acquire intangible assets - EVINE $ 20,000evlv_PaymentstoacquireintangibleassetsEVINE     $ 59,000evlv_PaymentstoacquireintangibleassetsEVINE $ 0evlv_PaymentstoacquireintangibleassetsEVINE $ 0evlv_PaymentstoacquireintangibleassetsEVINE  
Document Period End Date       Jan. 31, 2015      
Warrants, Outstanding         6,000,000us-gaap_ClassOfWarrantOrRightOutstanding    
Stock Issued During Period, Shares, Acquisitions 178,842us-gaap_StockIssuedDuringPeriodSharesAcquisitions     178,842us-gaap_StockIssuedDuringPeriodSharesAcquisitions      
Stock Issued During Period, Value, Acquisitions 1,044,000us-gaap_StockIssuedDuringPeriodValueAcquisitions     1,044,000us-gaap_StockIssuedDuringPeriodValueAcquisitions 0us-gaap_StockIssuedDuringPeriodValueAcquisitions 0us-gaap_StockIssuedDuringPeriodValueAcquisitions  
Payments to Acquire Intangible Assets $ 39,000us-gaap_PaymentsToAcquireIntangibleAssets $ 2,830,000us-gaap_PaymentsToAcquireIntangibleAssets $ 4,000,000us-gaap_PaymentsToAcquireIntangibleAssets $ 0us-gaap_PaymentsToAcquireIntangibleAssets $ 2,830,000us-gaap_PaymentsToAcquireIntangibleAssets $ 4,000,000us-gaap_PaymentsToAcquireIntangibleAssets  
Comcast [Member]              
Related Party Transaction [Line Items]              
Equity Method Investment, Ownership Percentage in NBCU             51.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= evlv_ComcastMember
GE [Member]              
Related Party Transaction [Line Items]              
Equity Method Investment, Ownership Percentage in NBCU             49.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= evlv_GeMember
Warrants, Outstanding       0us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= evlv_GeMember
     
Common Stock Shares Held in Subsidiary       3,718,767evlv_CommonStockSharesHeldInSubsidiary
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= evlv_GeMember
     
Number of Members Related Party Entitled to Appoint to Board of Directors       2evlv_NumberOfMembersRelatedPartyEntitledToAppointToBoardOfDirectors
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= evlv_GeMember
     
NBCU [Member]              
Related Party Transaction [Line Items]              
Common Stock Shares Held in Subsidiary       7,141,849evlv_CommonStockSharesHeldInSubsidiary
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= evlv_NbcuMember
     
Minimum Beneficial Ownership to Retain Board Seat       5.00%evlv_MinimumBeneficialOwnershipToRetainBoardSeat
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= evlv_NbcuMember