Note 2 - Investments (Tables)

3 Months Ended

Sep. 30, 2023

Notes Tables

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

	September 30, 2023
Available-for-Sale Investments	Adjusted		Unrealized		Unrealized			Fair
(In thousands)	Cost		Gain		Loss			Value
Mutual Funds - Corporate & Government Debt	$	19,995	$	—	$	(1,074	)	$	18,921
ETFs - Corporate & Government Debt		7,375		—		(433	)		6,942
Time Deposits		—		—		—			—
Total	$	27,370	$	—	$	(1,507	)	$	25,863

	June 30, 2023
Available-for-Sale Investments	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
(In thousands)	September 30, 2023		June 30, 2023
Money Market Funds
Mutual Funds - Corporate & Government Debt	$	18,921	$	18,965
ETFs - Corporate & Government Debt		6,942		6,958
Time Deposits
Maturities from 1-90 days		—		—
Maturities from 91-360 days		—		1,996
Total	$	25,863	$	27,919