BALANCE SHEET INFORMATION (Tables)

3 Months Ended

Aug. 31, 2023

BALANCE SHEET INFORMATION

Inventories

	August 31,		May 31,
(In thousands)	2023		2023
Raw materials and sub-assemblies	$	19,422	$	15,953
Work in process		9,617		5,764
Finished goods		2,518		2,191
	$	31,557	$	23,908

Property and equipment, net

	Useful life	August 31,			May 31,
(In thousands)	(In years)	2023			2023
Leasehold improvements	*	$	1,325		$	1,310
Machinery and equipment	3 - 6		5,787			5,445
Test equipment	4 - 6		3,083			2,998
Furniture and fixtures	2 - 6		725			706
			10,920			10,459
Less: accumulated depreciation and amortization			(7,837	)		(7,700	)
		$	3,083		$	2,759

Liability for product warranties

	Three Months Ended August 31,
(In thousands)	2023			2022
Balance at the beginning of the period	$	267		$	410
Accruals for warranties issued during the period		65			118
Adjustments to previously existing warrany accruals		-			61
Consumption of reserves		(100	)		(165	)
Balance at the end of the period	$	232		$	424

Customer deposits and deferred revenue, short-term

	August 31,		May 31,
(In thousands)	2023		2023
Customer deposits	$	2,008	$	2,690
Deferred revenue		4,106		132
	$	6,114	$	2,822