Stockholders' Equity - Equity Financings - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 31, 2020	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Common Stock [Member]
Class Of Stock [Line Items]
Common stock issued		902,769		902,769
At-the-Market Offering [Member]
Class Of Stock [Line Items]
Price per share		$ 11.05		$ 11.05
Gross proceeds from issuance of common stock		$ 10,000,000		$ 10,000,000
Share issuance costs		$ 434,000		$ 434,000
Stock issuances, sales agent commission maximum percentage	3.00%
At-the-Market Offering [Member] | Common Stock [Member]
Class Of Stock [Line Items]
Common stock issued		902,769	0	902,769	0