Note 2 - Investments (Tables)

3 Months Ended

Sep. 30, 2024

Notes Tables

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

	September 30, 2024
Available-for-Sale Investments	Adjusted		Unrealized		Unrealized			Fair
(In thousands)	Cost		Gain		Loss			Value
Mutual Funds - Corporate & Government Debt	$	15,276	$	—	$	(643	)	$	14,633
ETFs - Corporate & Government Debt		7,375		—		(218	)		7,157
Total	$	22,651	$	—	$	(861	)	$	21,790

	June 30, 2024
Available-for-Sale Investments	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

	Carrying Value				Carrying Value
	Short-Term Investments				Long-Term Investments
(In thousands)	September 30, 2024		June 30, 2024		September 30, 2024		June 30, 2024
Money Market Funds
Mutual Funds - Corporate & Government Debt	$	14,633	$	14,426	$	—	$	—
ETFs - Corporate & Government Debt		7,157		7,048		—		—
Total	$	21,790	$	21,474	$	—	$	—