Note 3 - Investments (Tables)

12 Months Ended

Jun. 30, 2024

Notes Tables

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

	June 30, 2024
Available-for-Sale	Adjusted		Unrealized		Unrealized			Fair
(In thousands)	Cost		Gain		Loss			Value
Mutual Funds - Corporate & Government Debt	$	15,276	$	—	$	(850	)	$	14,426
ETFs - Corporate & Government Debt		7,375		—		(327	)		7,048
Total	$	22,651	$	—	$	(1,177	)	$	21,474

	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

	Carrying Value
	Short-Term Investments				Long-Term Investments
(In thousands)	June 30, 2024		June 30, 2023		June 30, 2024		June 30, 2023
Money Market Funds
Mutual Funds - Corporate & Government Debt	$	14,426	$	18,965	$	—	$	—
ETFs - Corporate & Government Debt		7,048		6,958		—		—
Time deposits
Maturities from 1-90 days		—		—		—		—
Maturities from 91-360 days		—		1,996		—		—
Total	$	21,474	$	27,919	$	—	$	—