Nature of the Business - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended			3 Months Ended
	May 01, 2024	Apr. 30, 2025	Jan. 31, 2025	May 31, 2024	Mar. 31, 2025	Mar. 31, 2024	May 15, 2025	Dec. 31, 2024	Jul. 26, 2024	Oct. 31, 2023
Class of Stock [Line Items]
Proceeds from sales of stock					$ 712
Net proceeds from offering					$ 737	$ 0
Common stock, shares issued					22,005,317			21,666,012
Aggregate offering price					$ 108			$ 108
Proceeds from collaboration agreement					34,910
Cash and cash equivalents					$ 7,428	12,042		$ 12,865
Number of stock sold					2,353,500
Common stock, par value					$ 0.001			$ 0.001
Net loss					$ (5,501)	$ (7,113)
Accumulated deficit					(356,901)			$ (351,400)
Subsequent Event [Member] | Private Placement [Member]
Class of Stock [Line Items]
Gross proceeds from offering		$ 500
Underwriting Agreement [Member]
Class of Stock [Line Items]
Net proceeds from offering	$ 17,675			$ 17,675	$ 17,675
Number of stock sold					4,273,505
Common stock, par value	$ 0.001
Equity Distribution Agreement [Member] | At The Market Offering [Member]
Class of Stock [Line Items]
Net proceeds from offering			$ 712		$ 712
Transaction fee			$ 22		22
Lung Acquisition [Member]
Class of Stock [Line Items]
Net proceeds from offering					17,536
Common stock, shares issued										344,345
Cash and cash equivalents					$ 7,428
Number of stock sold					726,437
PIPE Warrants [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Gross proceeds from offering		3,101
Offering Warrant Shares [Member]
Class of Stock [Line Items]
Shares issued, price per share	4.68
Offering Warrant Shares [Member] | Underwriting Agreement [Member]
Class of Stock [Line Items]
Shares issued, price per share	$ 4.35
PIPE Warrants and Offering Warrants [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Gross proceeds from offering		$ 1,679
Offering Shares [Member]
Class of Stock [Line Items]
Proceeds from sales of stock					$ 145,467
Offering Shares [Member] | Underwriting Agreement [Member]
Class of Stock [Line Items]
Number of stock sold	4,273,505			4,273,505
Warrants to purchase shares of common stock				4,273,505
Offering Shares [Member] | Equity Distribution Agreement [Member] | At The Market Offering [Member]
Class of Stock [Line Items]
Number of stock sold			317,772		317,772
Offering Shares [Member] | Equity Distribution Agreement [Member] | Citizens JMP Securities [Member]
Class of Stock [Line Items]
Common stock, shares issued									50,000
Offering Shares [Member] | Wainwright Sales Agreement [Member] | H.C. Wainwright [Member] | Subsequent Event [Member] | At The Market Offering [Member] | Maximum [Member]
Class of Stock [Line Items]
Aggregate offering price							$ 13,702
Offering Shares [Member] | Offering Warrant Shares [Member] | Underwriting Agreement [Member]
Class of Stock [Line Items]
Warrants to purchase shares of common stock	4,273,505
Preferred Stock [Member]
Class of Stock [Line Items]
Proceeds from sales of stock					$ 131,211