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Stock Based Compensation - Summary of Stock-Based Compensation Recognized (Parenthetical) (Detail) - USD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Number of shares of common stock issued to certain board members in lieu of cash compensation |  | 32,684 | 56,912
Total stock-based compensation |  | $ 1,342,000 | $ 3,405,000
General and Administrative |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total stock-based compensation | [1] | 1,012,000 | 2,203,000
General and Administrative | Common Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |  |
Total stock-based compensation |  | $ 30,000 | $ 300,000
[1] | Included in general and administrative stock-based compensation for the years ended December 31, 2022 and 2021 is $30,000 and $0.3 million in expense related to 32,684 shares and 56,912 shares of common stock, respectively, issued to certain board members in lieu of their cash compensation.

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders. + References No definition available. + Details
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