Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023	Sep. 30, 2022
Accounting Policies [Abstract]
Net loss	$ 8,495	$ 12,228	$ 14,174	$ 23,921
Net cash used in operating activities - continuing operations			(9,742)	(25,067)
Cash and cash equivalents	11,990	$ 24,460	11,990	$ 24,460	$ 26,706	$ 25,619
Restricted cash	$ 495		$ 495		$ 495