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Commitments and Contingencies (Details) - USD ($) | 6 Months Ended | 24 Months Ended |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2016 | Dec. 31, 2017
Commitments and Contingencies |  |  |
Tenant improvement allowance |  | $ 411,000 |
Deferred rent liability | $ 457,000 |  | $ 448,000
Warranty |  |  |
Warranty period, maximum | 1 year |  |

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- Definition Tenant improvement allowance. + References No definition available. + Details
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Namespace Prefix: | egan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Warranty period maximum. + References No definition available. + Details
Name: | egan_WarrantyPeriodMaximum
Namespace Prefix: | egan_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902458&loc=d3e39896-112707 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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