Note 7 - Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
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
Unrealized holding gains (losses) on securities arising during the period, before tax		(1,566)	70
Unrealized holding gains (losses) on securities arising during the period, tax		328	(14)
Unrealized holding gains (losses) on securities arising during the period, net	[1],[2]	(1,238)	56
Accumulated other comprehensive income (loss), before tax		2,927	5,463
Accumulated other comprehensive income (loss), tax		(615)	(1,147)
Accumulated other comprehensive income (loss), net		$ 2,312	$ 4,316

[1] Income tax expense

[2] Securities (gains) losses, net