Note 3 - Investments - Investment Income or Loss Reflected in Earnings From Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023
Realized gains (losses) on equity securities	$ 79	$ 0	$ (740)	$ 0
Realized gains (losses) on debt securities	303	436	639	905
Unrealized gains (losses) on equity securities	279	(937)	(164)	(2,868)	$ (6,396)
Unrealized gains (losses) on debt securities	46	0	46	0
Unrealized gains (losses) on embedded derivatives	16	26	(63)	26
Unrealized gains (losses) on cash equivalents	(2)	0	(2)	0
Dividend and interest income	603	481	1,185	900
Realized foreign currency gains (losses)	92	110	2	(307)
Total Net Investment Income (Loss)	$ 1,416	$ 116	$ 903	$ (1,344)