COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Tables)

6 Months Ended

Dec. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of inventory

	December 31, 2023		June 30, 2023
Raw materials/purchased components	$	7,524	$	8,824
Work in process		3,905		3,686
Sub-assemblies/finished components		2,721		2,387
Finished goods		876		1,270
Total inventory	$	15,026	$	16,167

Schedule of investments

	December 31, 2023		June 30, 2023
Current:
Marketable equity securities – short-term	$	5,803	$	1,134
Long-term:
Warrant		—		6,160
Marketable equity securities – long-term		1,509		1,361
Total Investments	$	7,312	$	8,655

Schedule of land and building

	December 31, 2023			June 30, 2023
Land	$	3,684		$	3,684
Building		2,815			2,815
Total		6,499			6,499
Less: accumulated depreciation		(297	)		(250	)
	$	6,202		$	6,249

Schedule of intangibles

	December 31, 2023			June 30, 2023
Patent-related costs	$	208		$	208
Less: accumulated amortization		(140	)		(127	)
	$	68		$	81