Note 3 - Investments (Tables)

12 Months Ended

Jun. 30, 2023

Notes Tables

Debt Securities, Available-for-Sale [Table Text Block]

	June 30, 2023
Available-for-Sale	Adjusted		Unrealized		Unrealized			Fair
(In thousands)	Cost		Gain		Loss			Value
Mutual Funds - Corporate & Government Debt	$	19,990	$	—	$	(1,025	)	$	18,965
ETFs - Corporate & Government Debt		7,376		—		(418	)		6,958
Time Deposits		2,006		—		(10	)		1,996
Total	$	29,372	$	—	$	(1,453	)	$	27,919

	June 30, 2022
Available-for-Sale	Adjusted		Unrealized		Unrealized			Fair
(In thousands)	Cost		Gain		Loss			Value
Mutual Funds - Corporate & Government Debt	$	19,997	$	—	$	(806	)	$	19,191
ETFs - Corporate & Government Debt		7,375		—		(393	)		6,982
Total	$	27,372	$	—	$	(1,199	)	$	26,173

	Carrying Value
	Short-Term Investments				Long-Term Investments
(In thousands)	June 30, 2023		June 30, 2022		June 30, 2023		June 30, 2022
Money Market Funds
Mutual Funds - Corporate & Government Debt		18,965		19,191		—		—
ETFs - Corporate & Government Debt		6,958		6,982		—		—
Time deposits
Maturities from 1-90 days		—		—		—		—
Maturities from 91-360 days		1,996		—		—		-
Total	$	27,919	$	26,173	$	—	$	—