Note 4 - Investments - Investment Income or Loss Reflected in Earnings From Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Realized gains (losses) on equity securities	$ (6,845)	$ (453)
Realized gains (losses) on debt securities	1,140	1,664
Unrealized gains (losses) on equity securities	5,669	(2,563)
Unrealized gains (losses) on debt securities	(7)	0
Unrealized gains (losses) on embedded derivatives	(102)	111
Unrealized gains (losses) on cash equivalents	(1)	(5)
Dividend and interest income	2,411	1,798
Realized foreign currency gains (losses)	(121)	(236)
Total Net Investment Income (Loss)	$ 2,144	$ 316