Note 10 - Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2022		Dec. 31, 2021
Balance	$ 54,164		$ 54,324
Balance	52,380		59,029
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	3,624		6,564
Other comprehensive loss before reclassifications	(1,290)		(363)
Tax effect	271		76
Amount reclassified from AOCI	(905)		(1,170)
Tax effect	190		245
Net other comprehensive loss	(1,734)		(1,212)
Balance	1,890		5,352
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	0	[1]	23
Other comprehensive loss before reclassifications	0		(10)
Tax effect	0	[1]	0
Amount reclassified from AOCI	0	[1]	0
Tax effect	0	[1]	0
Net other comprehensive loss	0		(10)
Balance	0	[1]	13
AOCI Attributable to Parent [Member]
Balance	3,624		6,587
Other comprehensive loss before reclassifications	(1,290)		(373)
Tax effect	271		76
Amount reclassified from AOCI	(905)		(1,170)
Tax effect	190		245
Net other comprehensive loss	(1,734)		(1,222)
Balance	$ 1,890		$ 5,365

[1] Amounts include no tax expense or benefit.