XML 19 R29.htm IDEA: XBRL DOCUMENT v2.4.1.9
6. CONVERTIBLE NOTES PAYABLE (Details-Short term convertible debt) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Convertible Notes Payable    
Convertible notes payable, gross $ 956,325us-gaap_ConvertibleNotesPayable  
Discount 126,035us-gaap_DebtInstrumentUnamortizedDiscount 252,070us-gaap_DebtInstrumentUnamortizedDiscount
Convertible notes payable, net of discount 830,290us-gaap_ConvertibleNotesPayableCurrent 704,255us-gaap_ConvertibleNotesPayableCurrent
Pegasus Note    
Convertible Notes Payable    
Convertible notes payable, gross 100,000us-gaap_ConvertibleNotesPayable
/ us-gaap_ShortTermDebtTypeAxis
= evsi_PegasusNoteMember
 
Discount 0us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_ShortTermDebtTypeAxis
= evsi_PegasusNoteMember
 
Convertible notes payable, net of discount 100,000us-gaap_ConvertibleNotesPayableCurrent
/ us-gaap_ShortTermDebtTypeAxis
= evsi_PegasusNoteMember
 
Gemini Master Fund    
Convertible Notes Payable    
Convertible notes payable, gross 856,325us-gaap_ConvertibleNotesPayable
/ us-gaap_ShortTermDebtTypeAxis
= evsi_GeminiMasterFundMember
 
Discount 126,035us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_ShortTermDebtTypeAxis
= evsi_GeminiMasterFundMember
 
Convertible notes payable, net of discount $ 760,290us-gaap_ConvertibleNotesPayableCurrent
/ us-gaap_ShortTermDebtTypeAxis
= evsi_GeminiMasterFundMember