Note 15 - Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2022	Jun. 30, 2021
Balance		$ 54,324	$ 16,764
Balance		54,164	54,324
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance		6,564	0
Other comprehensive income before reclassifications		(1,529)	9,488
Tax effect		320	(1,992)
Amount reclassified from AOCI		(2,191)	(1,180)
Tax effect		460	248
Other Comprehensive Income (Loss)		(2,940)	6,564
Amount reclassified from AOCI		(2,191)	(1,180)
Balance		3,624	6,564
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	[1]	23	(4)
Other comprehensive income before reclassifications	[1]	(13)	27
Tax effect	[1]	0	0
Amount reclassified from AOCI	[1]	(10)	0
Tax effect	[1]	0	0
Other Comprehensive Income (Loss)	[1]	(23)	27
Amount reclassified from AOCI	[1]	(10)	0
Balance	[1]	0	23
AOCI Attributable to Parent [Member]
Balance		6,587	(4)
Other comprehensive income before reclassifications		(1,542)	9,515
Tax effect		320	(1,992)
Amount reclassified from AOCI		(2,201)	(1,180)
Tax effect		460	248
Other Comprehensive Income (Loss)		(2,963)	6,591
Amount reclassified from AOCI		(2,201)	(1,180)
Balance		$ 3,624	$ 6,587

[1] Amounts include no tax expense or benefit.