Annual report pursuant to Section 13 and 15(d)

Distribution Facility Expansion (Details)

v2.4.1.9
Distribution Facility Expansion (Details) (USD $)
12 Months Ended 6 Months Ended 12 Months Ended
Jan. 31, 2015
sqft
Aug. 01, 2015
Jan. 30, 2016
Jan. 31, 2014
Future Distribution Facility Expansion [Line Items]        
Current Facility Square Footage 262,000evlv_CurrentFacilitySquareFootage      
Expanded Facility Square Footage 600,000evlv_ExpandedFacilitySquareFootage      
Payments for Construction in Process $ 15,000,000us-gaap_PaymentsForConstructionInProcess      
Scenario, Forecast [Member]        
Future Distribution Facility Expansion [Line Items]        
Expected Significant Asset Acquisition   25,000,000evlv_ExpectedSignificantAssetAcquisition
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
   
Estimated Construction Costs, Next Fiscal Year     10,100,000evlv_EstimatedConstructionCostsNextFiscalYear
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
 
2014 Line Of Credit Amendment - PNC Bank, N.A. [Member]        
Future Distribution Facility Expansion [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity       $ 15,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_LineOfCreditFacilityAxis
= evlv_A2014LineOfCreditAmendmentPNCBankN.A.Member