Series A Redeemable Convertible Preferred Stock and Related Warrant - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		9 Months Ended
	Aug. 15, 2022	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2019	Dec. 31, 2016
Temporary Equity [Line Items]
Series A redeemable convertible preferred stock, shares issued		3,000	0
Series A redeemable convertible preferred stock, par value (in dollars per share)		$ 0.001
Purchase Agreement [Member]
Temporary Equity [Line Items]
Warrants exercisable date	Feb. 15, 2023
Warrants maturity term	Feb. 15, 2028
Warrant liability	$ 0.1
Common Stock [Member]
Temporary Equity [Line Items]
Number of shares issuable for warrants outstanding (in shares)				11,365	10,579
Exercise price of warrants				$ 77.50	$ 77.50
Common Stock [Member] | Purchase Agreement [Member]
Temporary Equity [Line Items]
Number of shares issuable for warrants outstanding (in shares)	42,857
Exercise price of warrants	$ 7.50
Aggregate subscription amount	$ 0.3
Series A Redeemable Convertible Preferred Stock [Member] | Purchase Agreement [Member]
Temporary Equity [Line Items]
Series A redeemable convertible preferred stock, shares issued	3,000
Series A redeemable convertible preferred stock, par value (in dollars per share)	$ 0.001
Temporary equity issued, price per share	100
Conversion price of preferred shares	$ 7.00
Conversion date of preferred shares	Oct. 12, 2022
Preferred stock price percentage on stated value	105.00%
Preferred stock price percentage on stated value, held by holders of preferred stock	110.00%
Preferred stock price percentage on stated value, automatically redeemable upon delisting of common shares	110.00%
Voting rights		The Series A Redeemable Convertible Preferred Stock will have no voting rights other than the right to vote on certain matters. Each share of Series A Redeemable Convertible Preferred entitles the holder to 1,000,000 votes on a proposal to approve a reverse stock split of the Company’s outstanding common stock (the “Proposal”) and any proposal to adjourn any meeting of stockholders called for the purpose of voting on the Proposal; provided, however, that such shares of Series A Redeemable Convertible Preferred Stock shall be voted in the same proportion as the shares of common stock (excluding any shares of common stock that are not voted)
Series A Redeemable Convertible Preferred Stock [Member] | Purchase Agreement [Member] | Maximum [Member]
Temporary Equity [Line Items]
Conversion price of preferred shares	$ 10.00