Note 2 - Investments (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

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

	March 31, 2022
Available-for-Sale	Adjusted		Unrealized		Unrealized			Fair
(In thousands)	Cost		Gain		Loss			Value
Mutual Funds - Corporate & Government Debt	$	19,997	$	—	$	(510	)	$	19,487
ETFs - Corporate & Government Debt		7,375		—		(282	)		7,093
Total	$	27,372	$	—	$	(792	)	$	26,580

	June 30, 2021
Available-for-Sale	Adjusted		Unrealized		Unrealized			Fair
(In thousands)	Cost		Gain		Loss			Value
Mutual Funds - Corporate & Government Debt	$	19,998	$	—	$	(13	)	$	19,985
ETFs - Corporate & Government Debt		7,376		—		(10	)		7,366
Total	$	27,374	$	—	$	(23	)	$	27,351