Note 8 - Supplementary Balance Sheet Information

9 Months Ended

Jun. 30, 2024

Notes to Financial Statements

Supplemental Balance Sheet Disclosures [Text Block]

8. Supplementary Balance Sheet Information

Inventories

The following is a summary of inventories at June 30, 2024 and  September 30, 2023 (in thousands):

	June 30,		September 30,
	2024		2023
Raw materials and purchased parts	$	56,341	$	59,861
Work-in-process		10,504		11,400
Finished goods		48,425		56,937
Total inventories	$	115,270	$	128,198

Inventory reserves were $9.0 million and $5.0 million, respectively, at June 30, 2024 and  September 30, 2023.

Warranty and Retrofit Costs

The following is a summary of product and warranty retrofit activity for the nine months ended June 30, 2024 and 2023 (in thousands):

	Nine Months Ended June 30,
	2024			2023
Balance at beginning of period	$	10,223		$	2,890
Adjustment for acquisitions		—			2,303
Accruals for warranties during the period		1,031			3,936
Costs incurred during the period		(1,903	)		(2,871	)
Balance at end of period	$	9,351		$	6,258