Note 2 - Investments (Tables)

3 Months Ended

Sep. 30, 2022

Notes Tables

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

	September 30, 2022
Available-for-Sale Securities	Adjusted		Unrealized		Unrealized			Fair
(In thousands)	Cost		Gain		Loss			Value
Mutual Funds - Corporate & Government Debt	$	19,997	$	—	$	(1,042	)	$	18,955
ETFs - Corporate & Government Debt		7,375		—		(498	)		6,877
Time Deposits		4,870		—		(27	)		4,843
Total	$	32,242	$	—	$	(1,567	)	$	30,675

	June 30, 2022
Available-for-Sale Securities	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
Time Deposits		—		—		—			—
Total	$	27,372	$	—	$	(1,199	)	$	26,173

	Carrying Value
	Short-Term Investments
(In thousands)	September 30, 2022		June 30, 2022
Mutual Funds - Corporate & Government Debt	$	18,955	$	19,191
ETFs - Corporate & Government Debt		6,877		6,982
Time Deposits - Maturities from 1-90 days		—		—
Time Deposits - Maturities from 91-360 days		4,843		—
Total	$	30,675	$	26,173