Litigation Settlement, Amount Released

No definition available.

Name:	evol_LitigationSettlementAmountReleased
Namespace Prefix:	evol_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

No definition available.

+ Details

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

- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

No definition available.

+ Details

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

- 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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of revenue and income classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.4)
-URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_OtherCommitmentsAxis=evol_InsurancePolicyCoverageMember
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Data Type:	na
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- Details

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- Details

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Commitments And Contingencies (Narrative) (Details) - USD ($) $ in Millions		9 Months Ended
	Oct. 24, 2014	Sep. 30, 2018	Dec. 31, 2017
Other Commitments [Line Items]
Litigation settlement, amount agreed to pay other party		$ 0.3
Litigation settlement, paid by company		0.1
Litigation settlement, amount released		0.3
Indemnification Agreement [Member] \| Insurance Policy Coverage [Member]
Other Commitments [Line Items]
Liabilities		0.0	$ 0.0
Indemnification Agreement [Member] \| Customers And Suppliers [Member]
Other Commitments [Line Items]
Liabilities		0.0	0.0
Indemnification Agreement [Member] \| Product Warranty [Member]
Other Commitments [Line Items]
Liabilities		0.0	0.0
Indemnification Agreement [Member] \| Software [Member]
Other Commitments [Line Items]
Liabilities		$ 0.0	$ 0.0
Telespree [Member]
Other Commitments [Line Items]
Acquisition date		Oct. 24, 2013
Final cash payment	$ 0.5
Other income		$ 0.5