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v3.22.1

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
DEXYCU [Member] |  |
Schedule Of Significant Accounting Policies [Line Items] |  |
Accrued revenue-based royalty expense | $ 674,000 | $ 455,000

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- Definition Accrued revenue based royalty expense. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Schedule Of Significant Accounting Policies [Line Items] + References No definition available. + Details
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Namespace Prefix: | eypt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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