Note 18 - Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2021	Jun. 30, 2020
Accumulated other comprehensive income (loss), before tax		$ 5,393	$ 1,982
Accumulated other comprehensive income (loss), tax		(1,133)	(416)
Accumulated other comprehensive income (loss), net		4,260	1,566
Unrealized holding gain on available-for-sale securities arising during the period, pretax		(886)	3,766
Unrealized holding gain on available-for-sale securities arising during the period, tax		187	(791)
Unrealized holding gain on available-for-sale securities arising during the period, net		(699)	2,975
Amounts reclassified from accumulated other comprehensive income, before tax	[1],[2]	(14)	(355)
Amounts reclassified from accumulated other comprehensive income, tax	[1],[2]	3	74
Amounts reclassified from accumulated other comprehensive income, net	[1],[2]	(11)	(281)
Net current period other comprehensive income, before tax		(900)	3,411
Net current period other comprehensive income, tax		190	(717)
Other comprehensive income (loss)		(710)	2,694
Accumulated other comprehensive income (loss), before tax		4,493	5,393
Accumulated other comprehensive income (loss), tax		(943)	(1,133)
Accumulated other comprehensive income (loss), net		$ 3,550	$ 4,260

[1] Income tax expense

[2] Securities gain, net