Pulmatrix Transaction - Additional Information (Detail)			1 Months Ended		3 Months Ended
	Jul. 08, 2024 USD ($) Employees	May 28, 2024	Jul. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2023
Business Acquisition [Line Items]
Number of pulmatrix employees which began employment | Employees	13
Incremental borrowing rate	7.25%				7.25%	7.25%
Letters of credit secured by cash held in restricted depository account				$ 700,000
Lease term extension period				Effective Date through November 30, 2033
Lease monthly payments				$ 100,000
Percentage of annual increment on lease				3.00%
Transaction costs					$ 100,000
Pulmatrix, Inc
Business Acquisition [Line Items]
Asset acquisition, date of acquisition agreement		May 28, 2024
Asset acquisition, effective date of acquisition	Jul. 08, 2024
Fair value of iSPERSE license	$ 4,300,000
Lease monthly payments			$ 101,282
Percentage of annual increment on lease			3.00%