Subsequent Event - Additional Information (Details)	Aug. 08, 2023 USD ($) Days $ / shares shares	Jun. 30, 2023 shares	Dec. 31, 2022 shares
Subsequent Event [Line Items]
Common stock, Shares outstanding \| shares		25,126,935	24,964,502
Subsequent Event \| Merger Agreement
Subsequent Event [Line Items]
Tender offer for common stock per share	$ 4.00
Common stock par value per share	0.001
Contingent value right per share	$ 3.50
Number of days open for business days \| Days	20
Termination fee \| $	$ 6,500,000
Common stock, Shares outstanding \| shares	2,097,314
Description of minimum condition of offer	represent one more share of Common Stock than 50% of the total number of shares of Common Stock outstanding at the time of the expiration of the Offer (the “Minimum Condition”)
Percentage of number of shares of common stock outstanding at time of expiration of offer	50.00%
Subsequent Event \| DB-OTO Milestone Payment
Subsequent Event [Line Items]
Tender offer for common stock per share	$ 2.00
Subsequent Event \| DB-OTO Milestone Payment \| Tranche 2
Subsequent Event [Line Items]
Exercise price per share	6.00
Subsequent Event \| Registration Study Milestone Payment
Subsequent Event [Line Items]
Tender offer for common stock per share	1.50
Subsequent Event \| Registration Study Milestone Payment \| Tranche 2
Subsequent Event [Line Items]
Exercise price per share	1.50
Subsequent Event \| Registration Study Milestone Payment \| Tranche 3
Subsequent Event [Line Items]
Exercise price per share	$ 7.50

Decibel Therapeutics, Inc. 10-Q