Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Oct. 30, 2020
Cover [Abstract]
Document Type	10-Q
Entity Registrant Name	AKOUOS, INC.
Document Period End Date	Sep. 30, 2020
Entity Central Index Key	0001722271
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		34,382,665
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Interactive Data Current	Yes
Entity Ex Transition Period	false