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Acquisition - Schedule of Purchase Price Allocation (Detail) (Parenthetical) (Exony Limited)	0 Months Ended
	Aug. 06, 2014	Jul. 30, 2014
Exony Limited
Business Acquisition [Line Items]
Stock, number of shares		1,164,189egan_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssuedExcludingSharesIssuedToShareholders / us-gaap_BusinessAcquisitionAxis = egan_ExonyLimitedMember
Other purchase consideration, shares of stock issuable to two shareholders	45,119egan_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssuedToShareholders / us-gaap_BusinessAcquisitionAxis = egan_ExonyLimitedMember	45,119egan_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssuedToShareholders / us-gaap_BusinessAcquisitionAxis = egan_ExonyLimitedMember

X

- Definition

Business acquisition equity interests issued or issuable number of shares issued, excluding shares issued to shareholders.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Business acquisition equity interests issued or issuable number of shares issued, to shareholders.

+ References

No definition available.

+ Details

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Namespace Prefix:	egan_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Period Type:	duration