Related Party Transactions (Details)	12 Months Ended
Jun. 30, 2018 USD ($) ft²	Jun. 30, 2017 USD ($)
Related Party Transaction [Line Items]
Annual rent payment, year one	$ 759,000
Rental expense	$ 704,000	$ 381,000
Michael S. Steiner and Robert Steiner [Member]
Related Party Transaction [Line Items]
Area of lease \| ft²	27,000
Lease start date	Nov. 01, 2014
Annual rent payment, year one	$ 12,000
Rental expense	$ 137,000	139,000
Dennis Mack [Member]
Related Party Transaction [Line Items]
Original lease term	5 years
Area of lease \| ft²	17,600
Lease start date	Oct. 10, 2016
Annual rent payment, year one	$ 12,000
Rental expense	$ 144,000	$ 88,000
Jim Hohnstein and Bill Mann [Member]
Related Party Transaction [Line Items]
Original lease term	3 years
Area of lease \| ft²	10,000
Annual rent payment, year one	$ 6,500
Rental expense	$ 78,000
Matt Stephenson [Member] \| Tri-State [Member]
Related Party Transaction [Line Items]
Original lease term	5 years
Area of lease \| ft²	81,000
Annual rent payment, year one	$ 21,000
Rental expense	$ 168,000
Mike Zuffinetti [Member]
Related Party Transaction [Line Items]
Area of lease \| ft²	17,000
Annual rent payment, year one	$ 13,500
Rental expense	$ 87,000
Mike Zuffinetti [Member] \| AA Advantage [Member]
Related Party Transaction [Line Items]
Original lease term	5 years
Area of lease \| ft²	5,000
Annual rent payment, year one	$ 3,950

The start date of lease agreement, in CCYY-MM-DD format.

No definition available.

Name:	evi_LeaseStartDate
Namespace Prefix:	evi_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Net rentable area for properties owned.

+ References

No definition available.

+ Details

Name:	us-gaap_NetRentableArea
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
-Subparagraph (Note 3)
-URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697

+ Details

Name:	us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

+ Details

Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_ExecutiveVicePresidentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=evi_DennisMackMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=evi_JimHohnsteinAndBillMannMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=evi_MattStephensonMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=evi_TriStateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=evi_MikeZuffinettiMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=evi_AAdvantageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: