Summary of Operations and Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Activity in Allowance for Doubtful Accounts

The following is a summary of the activity in our allowance for doubtful accounts, in thousands:

	Years Ended September 30,
	2023			2022			2021
Balance at beginning of year	$	114		$	188		$	159
Acquired allowance		125			—			—
Provision		14			(34	)		44
Write offs		(114	)		6			(2	)
Adjustment (1)		7			(46	)		(13	)
Balance at end of year	$	146		$	114		$	188

(1) Primarily foreign currency translation adjustments.

Summary of Activity for Contract Liabilities

The following is a summary of activity for contract liabilities, in thousands:

	Years Ended September 30,
	2023			2022			2021
Beginning balance	$	7,231		$	1,624		$	1,224
New deposits		4,058			7,231			1,624
Deferred revenue		169			—			—
Revenue recognized		(3,005	)		(1,624	)		(1,224	)
Adjustment		(435	)		—			—
Ending balance	$	8,018		$	7,231		$	1,624

Schedule of Product Warranty Liability

The following is a summary of activity in accrued warranty expense, in thousands:

	Years Ended September 30,
	2023			2022			2021
Beginning balance	$	871		$	545		$	380
Additions for warranties issued during the period		590			821			250
Costs incurred during the period		(64	)		(36	)		(9	)
Changes related to pre-existing warranties		(432	)		(459	)		(76	)
Ending balance	$	965		$	871		$	545