Stockholders' Equity - Schedule of Stock Option Expense (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
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Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock-based compensation expense | $ 436 | $ 830 | $ 954 | $ 1,641 |
| Research and Development [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock-based compensation expense | 134 | 249 | 274 | 493 |
| General and Administrative [Member] | ||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Stock-based compensation expense | $ 302 | $ 581 | $ 680 | $ 1,148 |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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