Shares Issued for Loan Guaranty - Related Party

No definition available.

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Period Type:	duration

- Definition

Shares Issued for Loan Guaranty - Related Party (Shares)

+ References

No definition available.

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- Definition

Stock issued for loan guaranty, shares issued

+ References

No definition available.

+ Details

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- Definition

Stock issued for loan guaranty, value

+ References

No definition available.

+ Details

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Namespace Prefix:	evsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

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Balance Type:	debit
Period Type:	instant

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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-Publisher FASB
-Name Accounting Standards Codification
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Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SX 210.9-03(13))
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+ Details

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
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Balance Type:	debit
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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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-Publisher FASB
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-Subparagraph (SX 210.4-08.(f))
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8. LINE OF CREDIT/TERM DEBT - SILICON VALLEY BANK (Details Narrative) - USD ($)	3 Months Ended		4 Months Ended	9 Months Ended	10 Months Ended	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Apr. 29, 2017	Sep. 30, 2017	Oct. 29, 2016	Dec. 31, 2017	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2016
Line of credit maximum borrowing capacity						$ 3,000,000
Shares Issued for Loan Guaranty - Related Party (Value)						68,078	$ 68,078	$ 22,123	$ 22,123
Payment of debt issuance costs						22,283		2,400
Unamortized debt discount	$ 120,371					232,767
Line of credit outstanding, current						0		1,000,000
Gain on settlement of debt		$ 107,081				107,081		0
Repayment of credit line	$ 860,000	$ 0
Keshif Ventures LLC [Member]
Shares Issued for Loan Guaranty - Related Party (Value)						$ 68,078		$ 22,123
Shares Issued for Loan Guaranty - Related Party (Shares)						453,857		147,493
Loan and Security Agreement [Member]
Line of credit maximum borrowing capacity						$ 1,500,000		$ 1,000,000
Line of credit maturity date						Mar. 01, 2020
Line of credit interest rate terms						Monthly interest only payments through December 2017.
Payment of debt issuance costs						$ 9,655
Line of credit outstanding, current						0
Proceeds from line of credit						500,000
Repayment of credit line						1,500,000
Loan and Security Agreement [Member] \| Keshif Ventures, LLC [Member]
Shares Issued for Loan Guaranty - Related Party (Value)						$ 68,078		$ 22,123
Shares Issued for Loan Guaranty - Related Party (Shares)						453,857		147,493
Gain on settlement of debt						$ 172		$ 2,877
Loan and Security Agreement [Member] \| Loan Guaranty [Member] \| Keshif Ventures, LLC [Member]
Stock issued for loan guaranty, shares issued			234,302	219,555	147,493
Stock issued for loan guaranty, value			$ 35,145	$ 32,933	$ 22,123
Gain on settlement of debt			$ 2,355	$ (2,183)	$ 2,877
Loan and Security Agreement [Member] \| Stock Purchase Agreement [Member] \| Keshif Ventures, LLC [Member]
Stock issued for loan guaranty, shares issued								571,429
Stock issued for loan guaranty, value								$ 85,714
Debt issuance costs								$ 11,435