Note 2 - Investments - Investment Income or Loss Reflected in Earnings From Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Realized gains on equity securities	$ 0	$ 43	$ 0	$ 1,853
Realized gains on debt securities	436	569	905	1,170
Unrealized gains (losses) on equity securities	(937)	455	(2,868)	(1,903)
Unrealized gains (losses) on embedded derivatives	26	(121)	26	(559)
Dividend and interest income	481	607	900	1,104
Realized foreign currency gains (losses)	110	26	(307)	(120)
Total Investment Income (Loss)	$ 116	$ 1,579	$ (1,344)	$ 1,545