Common Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended				6 Months Ended
	Jan. 24, 2022	Feb. 25, 2021	Jul. 16, 2020	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Changes In Equity And Comprehensive Income Line Items [Line Items]
Warrants outstanding				1,015,166				1,015,166		2,776,191
Exercise price of warrants or rights				$ 0.66				$ 0.66
Proceeds from issuance of common stock in public offering, net								$ 24,337	$ 52,356
Common stock, par or stated value per share				$ 0.0001				$ 0.0001		$ 0.0001
Issuance costs								$ 36	$ 118
Pre-Funded Warrants [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Number of securities called by warrants or rights				760,870				760,870
Warrants outstanding				869,566				869,566
Exercise price of warrants or rights				$ 0.0001				$ 0.0001
Common Stock [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Shares of common stock sold				2,157,717	335,485	1,405,710	2,110,800
Exchange Warrants [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Shares of common stock sold	999,984
Number of securities called by warrants or rights		1,000,000
Exercise price of warrants or rights		$ 0.0001
Common stock, par or stated value per share		$ 0.0001
Common stock exchanged for pre-funded warrants		1,000,000
Number of warrants exercised	1,000,000
Exchange Warrants [Member] | Exchanging Stockholders [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Ownership percentage		9.99%
Public Offering [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Gross proceeds from offering including exercise of underwriter's option			$ 132,200
Public Offering [Member] | Pre-Funded Warrants [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Exercise price of warrants or rights			$ 0.0001
Purchase price of warrants issued			$ 22.9999
Ownership percentage on exercise of warrants without notice, minimum			4.99%
Ownership percentage on exercise of warrants with notice, maximum			19.99%
Notice period to increase ownership percentage on exercise of warrants			61 days
Public Offering [Member] | Common Stock [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Shares of common stock sold			3,369,564
Public offering price, per share			$ 23.00
Public Offering [Member] | Common Stock [Member] | Pre-Funded Warrants [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Number of securities called by warrants or rights			1,630,436
Over-Allotment Option [Member] | Common Stock [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Shares of common stock sold			750,000
Proceeds from issuance of common stock in public offering, net			$ 124,000
At-The-Market Offering [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Shares of common stock sold								2,493,202
Proceeds from issuance of common stock in public offering, net								$ 24,300
At-The-Market Offering [Member] | Equity Distribution Agreement [Member] | Piper Sandler company and evercore group limited liability company and B Riley Securities inc [Member]
Changes In Equity And Comprehensive Income Line Items [Line Items]
Shares of common stock sold								7,293,656
Proceeds from issuance of common stock in public offering, net								$ 89,200
Common stock, par or stated value per share		$ 0.0001
Aggregate offering price		$ 125,000
Common stock available to be sold				$ 32,900				32,900
Deferred offering costs				$ 100				$ 100
Deferred offering costs applied to the proceeds					$ 200