Note 19 - Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Accumulated other comprehensive income (loss), before tax		$ (27,982)	$ 4,493
Accumulated other comprehensive income (loss), tax		5,876	(943)
Accumulated other comprehensive income (loss), net		(22,106)	3,550
Unrealized holding loss on available-for-sale securities arising during the period, before tax		(9,929)	(32,469)
Unrealized holding loss on available-for-sale securities arising during the period, tax		2,085	6,818
Unrealized holding loss on available-for-sale securities arising during the period, net		(7,844)	(25,651)
Amounts reclassified from accumulated other comprehensive income, before tax	[1],[2]	(14)	(6)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax	[1],[2]	3	1
Amounts reclassified from accumulated other comprehensive income, net	[1],[2]	(11)	(5)
Net current period other comprehensive loss, before tax		(9,943)	(32,475)
Net current period other comprehensive loss, tax		2,088	6,819
Other comprehensive loss		(7,855)	(25,656)
Accumulated other comprehensive income (loss), before tax		(37,925)	(27,982)
Accumulated other comprehensive income (loss), tax		7,964	5,876
Accumulated other comprehensive income (loss), net		$ (29,961)	$ (22,106)

[1] Income tax expense

[2] Securities gain, net