Note 12 - Financial Information by Business Segment - Total Revenues and Income by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022
Revenue from Contract with Customer, Including Assessed Tax	$ 4,412	$ 6,521
Investment Income, Net, Total	(1,460)	(34)
Other income	61	56
Income (loss) before income taxes	186	2,904
Depreciation	61	48
Gross identifiable assets	55,612
Deferred tax asset	1,373		$ 872
Consolidated total assets	56,985	61,917	$ 58,362
Income (Loss) from Equity Method Investments	0	15
Investment Management Services [Member]
Revenue from Contract with Customer, Including Assessed Tax	4,412	6,521
Investment Income, Net, Total	0	0
Other income	61	56
Income (loss) before income taxes	1,661	3,113
Depreciation	61	48
Gross identifiable assets	23,607
Deferred tax asset
Consolidated total assets		21,204
Income (Loss) from Equity Method Investments		0
Corporate Investments [Member]
Revenue from Contract with Customer, Including Assessed Tax	0	0
Investment Income, Net, Total	(1,460)	(34)
Other income	0	0
Income (loss) before income taxes	(1,475)	(209)
Depreciation	0	0
Gross identifiable assets	32,005
Deferred tax asset
Consolidated total assets		40,713
Income (Loss) from Equity Method Investments		$ 15