COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Tables)

9 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of inventory

	March 31, 2024		June 30, 2023
Raw materials /purchased components	$	6,383	$	8,824
Work in process		3,944		3,686
Sub-assemblies/finished components		2,379		2,387
Finished goods		1,536		1,270
Total inventory	$	14,242	$	16,167

Schedule of investments

	March 31, 2024		June 30, 2023
Current:
Marketable equity securities – short-term	$	4,577	$	1,134
Long-term:
Warrant		—		6,160
Marketable equity securities – long-term		1,543		1,361
Total Investments	$	6,120	$	8,655

Schedule of land and building

	March 31, 2024			June 30, 2023
Land	$	3,684		$	3,684
Building		2,815			2,815
Total		6,499			6,499
Less: accumulated depreciation		(320	)		(250	)
	$	6,179		$	6,249

Schedule of intangibles

	March 31, 2024			June 30, 2023
Patent-related costs	$	208		$	208
Less accumulated amortization		(147	)		(127	)
	$	61		$	81