Investments (Tables)

12 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Summary of Short-Term Investments

The Company’s short-term investments were composed of the following (in thousands):

	AS OF SEPTEMBER 30, 2022
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Short-term investments:
Corporate bonds	$	909	$	—	$	(15	)	$	894
Total	$	909	$	—	$	(15	)	$	894

	AS OF SEPTEMBER 30, 2021
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Short-term investments:
Corporate bonds	$	9,511	$	—	$	(15	)	$	9,496
Total	$	9,511	$	—	$	(15	)	$	9,496