Note 2 - Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 10,200	$ 11,000
Accounts Receivable, Allowance for Credit Loss	0	0
Long-Lived Asset, Held and Used, Impairment Loss	$ 0	$ 0
Investment Advisory Fees, Fee Adjustment Base Percentage Adjustment	0.25%
Investment Advisory Fees, Fee Adjustment Percent, Minimum Performance to Designed Benchmark Over Prior Rolling 12 Months	5.00%
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant, and Equipment, Useful Life (Year)	3 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant, and Equipment, Useful Life (Year)	10 years
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant, and Equipment, Useful Life (Year)	14 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant, and Equipment, Useful Life (Year)	40 years