Equity Transactions - Rights Offering - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Class Of Stock [Line Items]
Issuance of Common Stock, conversion of Preferred Stock to Common Stock	$ 3
Common stock, par value	$ 0.001	$ 0.001
Aggregate issuance costs	$ 0	$ 248
Common Stock [Member]
Class Of Stock [Line Items]
Issuance of Common Stock, conversion of Preferred Stock to Common Stock	$ 6
Issuance of stock, shares	5,963,294	475,469
Series A Convertible Preferred Stock [Member]
Class Of Stock [Line Items]
Issuance of stock, shares	2,220