Stockholders' equity - Schedule of equity awards (Detail) - Employee stock option [Member] - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended |
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Sep. 30, 2023 |
Jun. 30, 2023 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Stock Options,Outstanding, beginning of period | 107,993 | |
| Stock Options, Outstanding, end of period | 107,993 | 107,993 |
| Stock Options, Exercisable, end of period | 27,135 | |
| Weighted-average Exercise price, beginning of period | $ 31.88 | |
| Weighted-average Exercise Price, Exercise price, end of period | 31.88 | $ 31.88 |
| Weighted-average Exercise Price, Exercisable, end of period | $ 88.79 | |
| Weighted-average Remaining Contractual Term, Outstanding | 8 years 8 months 12 days | 8 years 11 months 15 days |
| Weighted-average Remaining Contractual Term, Exercisable | 6 years 11 months 19 days | |
| Aggregate Intrinsic Value, Outstanding at June 30, 2023 | $ 342 | $ 11,888 |
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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