Note 11 - Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Balance	$ 48,367	$ 49,006	$ 50,526	$ 52,021	$ 49,006	$ 52,021
Other Comprehensive Income (Loss), Net of Tax	(134)	(142)	(171)	(214)	(276)	(385)
Balance	47,285	48,367	50,715	50,526	47,285	50,715
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance		$ 584		$ 1,348	584	1,348
Other comprehensive income (loss) before reclassifications					24	151
Other comprehensive income, Tax effect					(5)	(31)
Amount reclassified from AOCI					(373)	(639)
Reclassification from AOCI, Tax effect					78	134
Other Comprehensive Income (Loss), Net of Tax					(276)	(385)
Balance	$ 308		$ 963		$ 308	$ 963