Fair Value Measurements (Tables)

3 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Unrealized Gain (Loss) on Investments

The following tables present the Company’s cash equivalents and marketable securities’ costs, gross unrealized gains and losses, and fair value by major security type recorded as cash equivalents or short-term or long-term marketable securities as of December 31, 2024, and September 30, 2024. Unrealized gains and losses from the remeasurement of marketable securities are recorded in accumulated other comprehensive loss until recognized in earnings upon the sale or maturity of the security.

	December 31, 2024
	Cost Basis		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value		Cash Equivalents		Short-term Securities		Long-term Securities
Level 1:
Money market funds	$	1,279	$	—	$	—		$	1,279	$	1,279	$	—	$	—
Level 2:
Certificates of deposit		253		—		—			253		—		253		—
U.S. government agency bonds		641		—		—			641		—		641		—
Municipal securities		2,306		1		(1	)		2,306		—		2,001		305
Corporate bonds		2,250		1		—			2,251		—		2,251		—
Subtotal		5,450		2		(1	)		5,451		—		5,146		305
Total	$	6,729	$	2	$	(1	)	$	6,730	$	1,279	$	5,146	$	305

	September 30, 2024
	Cost Basis		Gross Unrealized Gain		Gross Unrealized Loss		Fair Value		Cash Equivalents		Short-term Securities		Long-term Securities
Level 1:
Money market funds	$	301	$	—	$	—	$	301	$	301	$	—	$	—
Level 2:
Certificates of deposit		401		—		—		401		152		—		249
U.S. government agency bonds		2,591		3		—		2,594		—		2,594		—
Municipal securities		2,127		2		—		2,129		—		2,129		—
Corporate bonds		3,219		3		—		3,222		—		3,222		—
Subtotal		8,338		8		—		8,346		152		7,945		249
Total	$	8,639	$	8	$	—	$	8,647	$	453	$	7,945	$	249

Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value

The following table summarizes the fair value and gross unrealized losses related to available-for-sale debt securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position as of December 31, 2024:

	As of December 31, 2024
	In loss position < 12 months					In loss position > 12 months				Total in loss position
	Fair Value		Gross Unrealized Loss			Fair Value		Gross Unrealized Loss		Fair Value		Gross Unrealized Loss
Certificates of deposit	$	—	$	—		$	—	$	—	$	—	$	—
U.S. government agency bonds		292		—			—		—		292		—
Municipal securities		1,447		(1	)		—		—		1,447		(1	)
Corporate bonds		547		—			—		—		547		—
	$	2,286	$	(1	)	$	—	$	—	$	2,286	$	(1	)

Schedule of Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis

The change in the carrying amount of the holdback liability was as follows:

Balance as of September 30, 2024	$	250
Payment		(250	)
Balance as of December 31, 2024	$	—