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STATEMENTS OF OPERATIONS (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Statement [Abstract]    
Revenues    $ 426,000us-gaap_SalesRevenueNet
Cost of revenues 60,000us-gaap_CostOfGoodsAndServicesSold 2,078,000us-gaap_CostOfGoodsAndServicesSold
Gross loss (60,000)us-gaap_GrossProfit (1,652,000)us-gaap_GrossProfit
Operating expenses    
Selling, general & administrative 404,000us-gaap_SellingGeneralAndAdministrativeExpense 1,081,000us-gaap_SellingGeneralAndAdministrativeExpense
Total operating expenses 404,000us-gaap_OperatingExpenses 1,081,000us-gaap_OperatingExpenses
Operating loss (464,000)us-gaap_OperatingIncomeLoss (2,733,000)us-gaap_OperatingIncomeLoss
Other income and (expense), net    
Loss on litigation      
Interest and other income (expense), net (155,000)ENVS_InterestAndOtherNonoperatingIncomeExpense (171,000)ENVS_InterestAndOtherNonoperatingIncomeExpense
Total other income and (expense), net (155,000)us-gaap_NonoperatingIncomeExpense (171,000)us-gaap_NonoperatingIncomeExpense
Net loss $ (619,000)us-gaap_NetIncomeLoss $ (2,904,000)us-gaap_NetIncomeLoss
Basic and diluted loss per share $ (0.01)us-gaap_EarningsPerShareBasicAndDiluted $ (0.07)us-gaap_EarningsPerShareBasicAndDiluted
Weighted average number of common shares outstanding 60,137,000ENVS_BasicAndDilutedWeightedAverageNumberOfSharesOutstanding 44,520,000ENVS_BasicAndDilutedWeightedAverageNumberOfSharesOutstanding