COMPOSITION OF CERTAIN FINANCIAL STATEMENT ITEMS (Tables)

6 Months Ended

Dec. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of inventory

Inventory is stated at the lower of cost (first-in, first-out) or net realizable value and consists of the following (in thousands):

	December 31, 2020		June 30, 2020
Raw materials/purchased components	$	4,019	$	4,241
Work in process		2,328		2,339
Sub-assemblies/finished components		2,226		1,438
Finished goods		579		220
Total inventory	$	9,152	$	8,238

Schedule of investments

Investments are stated at market value and consist of the following (in thousands):

	December 31, 2020		June 30, 2020
Marketable equity securities - short-term	$	2,884	$	2,560
Marketable equity securities - long-term		3,238		2,360
Total marketable equity securities	$	6,122	$	4,920

Schedule of land and building

Land and building consist of the following (in thousands):

	December 31, 2020			June 30, 2020
Land	$	3,684		$	—
Building		2,815			—
Total		6,499			—
Less: accumulated depreciation		(15	)		—
	$	6,484		$	—

Schedule of intangibles

Intangibles consist of the following (in thousands):

	December 31, 2020			June 30, 2020
Patent-related costs	$	225		$	222
Less accumulated amortization		(67	)		(60	)
	$	158		$	162