Note 7 - Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended
		Sep. 30, 2024	Sep. 30, 2023
Accumulated other comprehensive income (loss), before tax		$ (35,864)	$ (37,925)
Accumulated other comprehensive income (loss), tax		7,532	7,964
Accumulated other comprehensive income (loss), net		(28,332)	(29,961)
Unrealized gains (losses) arising during the period		9,813	(9,852)
Unrealized holding losses on available-for-sale securities arising during the period, tax		(2,062)	2,069
Unrealized holding losses on available-for-sale securities arising during the period, net		7,751	(7,783)
Accumulated other comprehensive income (loss), before tax		(26,051)	(47,698)
Reclassification adjustment for net losses included in income		0	79	[1],[2]
Accumulated other comprehensive income (loss), tax		5,470	10,017
Amounts reclassified from accumulated other comprehensive income, tax	[1],[2]		(16)
Accumulated other comprehensive income (loss), net		(20,581)	(37,681)
Amounts reclassified from accumulated other comprehensive income, net	[1],[2]		63
Net current period other comprehensive loss, before tax			(9,773)
Net current period other comprehensive loss, tax			(2,053)
Other comprehensive income (loss)		$ 7,751	$ (7,720)

[1] Income tax expense

[2] Securities (gains) losses, net