Equity Transactions - Underwritten Public Offering - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Class Of Stock [Line Items]
Proceeds from equity offering	$ 3,626	$ 4,253
Common Stock [Member]
Class Of Stock [Line Items]
Issuance of stock, shares	344,205	257,185

Number of new stock issued during the period.

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-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration