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Vendor Deposits	3 Months Ended
	Sep. 30, 2016
Deposit Assets Disclosure [Abstract]
Vendor Deposits	Note (5) – Vendor Deposits: Vendor deposits represent advances made to the Company’s vendors for specialized inventory on order.

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- Definition

The entire disclosure for vendor deposits.

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No definition available.

+ Details

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Namespace Prefix:	evi_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_DepositAssetsDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration