Note 12 - Financial Information by Business Segment - Total Revenues and Income by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024
Revenue from Contract with Customer, Including Assessed Tax	$ 2,157	$ 3,133
Net investment income (loss)	917	(513)
Other income (loss)	78	57
Income (loss) before income taxes	436	(241)
Depreciation	22	61
Gross identifiable assets	49,280	51,805
Deferred tax asset	1,804	2,287	$ 1,833
Consolidated total assets	51,084	54,092	$ 51,963
Investment Management Services [Member]
Revenue from Contract with Customer, Including Assessed Tax	2,157	3,133
Net investment income (loss)	0	0
Other income (loss)	78	57
Income (loss) before income taxes	(457)	288
Depreciation	22	61
Gross identifiable assets	27,188	26,954
Corporate Investments [Member]
Revenue from Contract with Customer, Including Assessed Tax	0	0
Net investment income (loss)	917	(513)
Other income (loss)	0	0
Income (loss) before income taxes	893	(529)
Depreciation	0	0
Gross identifiable assets	$ 22,092	$ 24,851