Share-Based Compensation - Schedule of Restricted Share Activity (Detail) - Restricted Stock [Member]	6 Months Ended
	Mar. 31, 2024 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Unvested, Beginning Balance | shares	736,891
Number of Shares, Granted | shares	30,000
Number of Shares, Vested | shares	(178,010)
Number of Shares, Forfeited | shares	(15,748)
Number of Shares, Unvested, Ending Balance | shares	573,133
Weighted-Average Grant Date Fair Value, Unvested, Beginning Balance | $ / shares	$ 3.35
Weighted-Average Grant Date Fair Value, Granted | $ / shares	0.91
Weighted-Average Grant Date Fair Value, Vested | $ / shares	3.26
Weighted-Average Grant Date Fair Value, Forfeited | $ / shares	4.12
Weighted-Average Grant Date Fair Value, Unvested, Ending Balance | $ / shares	$ 3.23