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Equity Incentive Plan (Details Textual) (USD $)
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3 Months Ended |
12 Months Ended |
0 Months Ended |
1 Months Ended |
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Mar. 31, 2015
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Dec. 31, 2014
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Dec. 31, 2010
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Mar. 12, 2012
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Feb. 13, 2015
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Feb. 28, 2015
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May 01, 2015
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized |
$ 911,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
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$ 5,095us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
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| Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition |
3 years 7 months 17 days
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1 year
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| Stock Issued During Period, Shares, Period Increase (Decrease) |
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891,222us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease
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| Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding And Exercisable Intrinsic Value |
1,850,000eyeg_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAndExercisableIntrinsicValue
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| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |
70,567us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
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| Three Officers And Six Employees [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Sale of Stock, Number of Shares Issued in Transaction |
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613,817us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
/ us-gaap_TitleOfIndividualAxis
= eyeg_ThreeOfficersAndSixEmployeesMember
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term |
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7 years 1 month 6 days
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| Allocated Share-based Compensation Expense |
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$ 31,290us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_TitleOfIndividualAxis
= eyeg_ThreeOfficersAndSixEmployeesMember
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| Stock Option [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price |
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$ 0.66us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_OptionIndexedToIssuersEquityEquityAxis
= us-gaap_EmployeeStockOptionMember
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| Minimum [Member] | Three Officers And Six Employees [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
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$ 2.85us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_TitleOfIndividualAxis
= eyeg_ThreeOfficersAndSixEmployeesMember
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| Maximum [Member] | Three Officers And Six Employees [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |
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$ 4.06us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_TitleOfIndividualAxis
= eyeg_ThreeOfficersAndSixEmployeesMember
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| 2005 And 2014 Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |
445,771us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= eyeg_And2014PlanMember
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| 2014 Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |
728,597us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= eyeg_TwoZeroOnePlanMember
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| Restricted Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights |
vest 13 % on the issuance date and 29% on each of the following June 30, 2015, September 30, 2015 and December 31, 2015
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| Restricted Stock [Member] | Subsequent Event [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant |
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125,412us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
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| IPO [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |
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| Stock Issued During Period, Shares, Other |
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60,358us-gaap_StockIssuedDuringPeriodSharesOther
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_IPOMember
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60,358us-gaap_StockIssuedDuringPeriodSharesOther
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_IPOMember
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| Sale of Stock, Number of Shares Issued in Transaction |
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683,250us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_IPOMember
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