v3.24.1.u1

Document And Entity Information	May 08, 2024
Cover [Abstract]
Entity Registrant Name	Assembly Biosciences, Inc.
Document Type	8-K
Amendment Flag	false
Entity Central Index Key	0001426800
Document Period End Date	May 08, 2024
Entity Emerging Growth Company	false
Entity File Number	001-35005
Entity Incorporation State Country Code	DE
Entity Tax Identification Number	20-8729264
Entity Address, Address Line One	Two Tower Place
Entity Address, Address Line Two	7th Floor
Entity Address, City or Town	South San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94080
City Area Code	(833)
Local Phone Number	509-4583
Written Communications	false
Soliciting Material	false
Pre-commencement Tender Offer	false
Pre-commencement Issuer Tender Offer	false
Security 12b Title	Common Stock, par value $0.001
Trading Symbol	ASMB
Securtiy Exchange Name	NASDAQ

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For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

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