Note 2 - Investments - Investment Income or Loss Reflected in Earnings From Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Statement [Line Items]
Realized gains (losses) on equity securities	$ (13)	$ (5)	$ (13)	$ 1,848
Realized gains on debt securities	394	524	1,299	1,694
Unrealized gains (losses) on equity securities	283	(3,044)	(2,586)	(4,946)
Unrealized gains (losses) on embedded derivatives	55	(1,491)	82	(2,050)
Dividend and interest income	421	441	1,321	1,545
Realized foreign currency gains (losses)	15	80	(292)	(41)
Total Investment Income (Loss)	$ 1,155	$ (3,495)	$ (189)	$ (1,950)