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6. NOTES PAYABLE (Details Narrative) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Note payable balance $ 43,033us-gaap_NotesPayableCurrent $ 43,033us-gaap_NotesPayableCurrent
Note Payable    
Note payable balance 43,033us-gaap_NotesPayableCurrent
/ us-gaap_DebtInstrumentAxis
= evsi_NotePayableMember
 
Accrued interest $ 10,671us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_DebtInstrumentAxis
= evsi_NotePayableMember