Annual report pursuant to Section 13 and 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) (USD $)
Jan. 31, 2015
Feb. 01, 2014
Accrued Liabilities, Current [Abstract]    
Accrued cable access fees $ 14,669,000evlv_AccruedCableAccessFees $ 15,861,000evlv_AccruedCableAccessFees
Accrued salaries and related 10,089,000us-gaap_EmployeeRelatedLiabilitiesCurrent 10,679,000us-gaap_EmployeeRelatedLiabilitiesCurrent
Finite-Lived Intangible Assets, Gross 1,103,000us-gaap_FiniteLivedIntangibleAssetsGross 6,830,000us-gaap_FiniteLivedIntangibleAssetsGross
Reserve for product returns 5,585,000evlv_ReserveForProductReturns 4,894,000evlv_ReserveForProductReturns
Other 6,340,000us-gaap_OtherAccruedLiabilitiesCurrentAndNoncurrent 7,101,000us-gaap_OtherAccruedLiabilitiesCurrentAndNoncurrent
Accrued liabilities $ 36,683,000us-gaap_AccruedLiabilitiesCurrent $ 38,535,000us-gaap_AccruedLiabilitiesCurrent