Note 7 - Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Accumulated other comprehensive income (loss), before tax		$ (26,051)	$ (47,698)	$ (35,864)	$ (37,925)
Accumulated other comprehensive income (loss), tax		5,470	10,017	7,532	7,964
Accumulated other comprehensive income (loss), net		(20,581)	(37,681)	(28,332)	(29,961)
Unrealized (losses) gains arising during the period		(7,195)	15,656	2,618	5,804
Unrealized holding losses on available-for-sale securities arising during the period, tax		1,511	(3,288)	(551)	(1,219)
Unrealized holding losses on available-for-sale securities arising during the period, net		(5,684)	12,368	2,067	4,585
Accumulated other comprehensive income (loss), before tax		(33,246)	(32,042)	(33,246)	(32,042)
Reclassification adjustment for net losses included in income		0	0	0	79	[1],[2]
Accumulated other comprehensive income (loss), tax		6,981	6,729	6,981	6,729
Amounts reclassified from accumulated other comprehensive income, tax	[1],[2]				(16)
Accumulated other comprehensive income (loss), net		(26,265)	(25,313)	(26,265)	(25,313)
Amounts reclassified from accumulated other comprehensive income, net	[1],[2]				63
Net current period other comprehensive loss, before tax					5,883
Net current period other comprehensive loss, tax					1,235
Other comprehensive (loss) income		$ (5,684)	$ 12,368	$ 2,067	$ 4,648

[1] Income tax expense

[2] Securities (gains) losses, net