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

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- Definition Business acquisition equity interests issued or issuable number of shares issued, excluding shares issued to shareholders. + References No definition available. + Details
Name: | egan_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssuedExcludingSharesIssuedToShareholders
Namespace Prefix: | egan_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Business acquisition equity interests issued or issuable number of shares issued, to shareholders. + References No definition available. + Details
Name: | egan_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssuedToShareholders
Namespace Prefix: | egan_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration