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Share-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended					9 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested share-based compensation arrangements	$ 1,300,000					$ 1,300,000
Unrecognized compensation cost, period for recognition						1 year 2 months 12 days
Share-based compensation expense	$ 200,000		$ 600,000			$ 1,000,000	$ 1,900,000
Amounts remitted for employee withholding taxes						$ 126,000	346,000
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares withheld	102,436	1,490	163,920	29,276	847
Board of Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares vesting period						1 year
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amounts remitted for employee withholding taxes						$ 100	$ 300
Restricted Stock Units [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares withheld						102,436	163,920
Restricted Stock Units [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares vesting period						3 years
Restricted Stock Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares vesting period						5 years

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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