Restricted Investments (Tables)

6 Months Ended

Mar. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Summary of Debt Securities

The following is a summary of the Company’s debt securities as of March 31, 2024 and September 30, 2023 (in thousands):

	March 31, 2024
	(unaudited)
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. government securities	$	6,975	$	—	$	187	$	6,788
Corporate debt securities	5,907		—		134		5,773
Municipal government securities	1,758		—		62		1,696
Agency backed securities	1,263		—		68		1,195
Total	$	15,903	$	—	$	451	$	15,452

	September 30, 2023
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S government securities	$	6,869	$	—	$	320	$	6,549
Corporate debt securities	5,931		—		326		5,605
Municipal government securities	1,853		—		105		1,748
Agency backed securities	1,273		—		96		1,177
Total	$	15,926	$	—	$	847	$	15,079

The amortized cost and fair value of debt securities classified as available for sale by contractual maturity, as of March 31, 2024, are as follows (unaudited, in thousands):

	Amortized Cost		Fair Value
Due within one year	$	2,085	$	2,070
Due after one year through three years	4,493		4,357
Due after three years	9,325		9,025
Total	$	15,903	$	15,452