Restricted Investments (Tables)

9 Months Ended

Jun. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Summary of Debt Securities

The following is a summary of the Company’s debt securities as of June 30, 2023 and September 30, 2022 (in thousands):

	June 30, 2023
	(unaudited)
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
U.S. government securities	$	6,007	$	—	$	175	$	5,832
Corporate debt securities	4,774		—		242		4,532
Municipal government securities	1,928		—		86		1,842
Agency backed securities	1,225		—		78		1,147
Total	$	13,934	$	—	$	581	$	13,353

	September 30, 2022
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Corporate debt securities	$	2,797	$	—	$	260	$	2,537
U.S. government securities	2,622		—		141		2,481
Municipal government securities	1,151		—		96		1,055
Agency backed securities	862		—		69		793
Total	$	7,432	$	—	$	566	$	6,866

The amortized cost and fair value of debt securities classified as available for sale by contractual maturity, as of June 30, 2023, were as follows (unaudited, in thousands):

	Amortized Cost		Fair Value
Due within one year	$	2,529	$	2,512
Due after one year through three years	4,382		4,226
Due after three years	7,023		6,615
Total	$	13,934	$	13,353