Investments (Tables)

12 Months Ended

Sep. 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 September 30, 2023 and 2022 (in thousands):

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
Other debt securities	1,273		—		96		1,177
Total	$	15,926	$	—	$	847	$	15,079

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
Other debt 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 September 30, 2023, are as follows (in thousands):

	September 30, 2023
	Amortized Cost		Fair Value
Due within one year	$	2,499	$	2,480
Due after one year through three years	4,327		4,154
Due after three years	9,100		8,445
Total	$	15,926	$	15,079