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v3.19.1

PAYABLE TO LICENSOR (Details Textual) - USD ($) | 1 Months Ended |  |  |
--- | --- | --- | --- | ---
Nov. 04, 2018 | Nov. 04, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Payable Due Licensor Current |  |  | $ 10,000,000 | $ 0
Payable Due Licensor Non current |  |  | $ 20,000,000 | $ 0
REGENXBIO [Member] | Licensing Agreements [Member] |  |  |  |
Annual Fees | $ 100,000,000 |  |  |
Guranteed Upfront Payment | 20,000,000 |  |  |
Payable Due Licensor Non current | $ 20,000,000 | $ 20,000,000 |  |
REGENXBIO [Member] | Scenario, Forecast [Member] | Licensing Agreements [Member] |  |  |  |
Payable Due Licensor Current |  | $ 10,000,000 |  |

X
- Definition Represents the total annual fees payable on the contract. + References No definition available. + Details
Name: | abeo_AnnualFees
Namespace Prefix: | abeo_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of upfront payment to be made. + References No definition available. + Details
Name: | abeo_GuranteedUpfrontPayment
Namespace Prefix: | abeo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount payable due to licensor. + References No definition available. + Details
Name: | abeo_PayableDueLicensorCurrent
Namespace Prefix: | abeo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount less current portion of payable due to licensor. + References No definition available. + Details
Name: | abeo_PayableDueLicensorNonCurrent
Namespace Prefix: | abeo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=abeo_REGENXBIOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_LicensingAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |