Variable Interest Entities - Schedule of Assets of Consolidated Funds Measured at Fair Value on a Recurring Basis (Details) - USD ($)	Sep. 30, 2026	Jun. 30, 2026
Assets:
Total assets	$ 35,217,000	$ 32,612,000
Level 1
Assets:
Equity investments	6,579,000	7,395,000
Debt securities	0
Total assets	6,579,000	7,395,000
Level 2
Assets:
Equity investments	32,000	0
Debt securities	84,000
Total assets	116,000	0
Level 3
Assets:
Equity investments	1,959,000	1,797,000
Debt securities	2,887,000
Total assets	4,846,000	1,797,000
Level 3 \| Fair Value, Recurring Basis
Assets:
Equity investments		239,000
Debt securities		3,517,000
Fair Value, Inputs, Level 1, 2 and 3
Assets:
Equity investments	8,570,000	9,192,000
Debt securities	2,971,000
Total assets	11,541,000	9,192,000
Fair Value Measured at Net Asset Value Per Share
Assets:
Investments valued at net asset value	23,676,000	23,420,000
Consolidated Funds \| Fair Value, Recurring Basis
Assets:
Total assets	$ 0	5,346,000
Consolidated Funds \| Level 1 \| Fair Value, Recurring Basis
Assets:
Equity investments		0
Debt securities		0
Total assets		0
Consolidated Funds \| Level 2 \| Fair Value, Recurring Basis
Assets:
Equity investments		54,000
Debt securities		0
Total assets		54,000
Consolidated Funds \| Level 3 \| Fair Value, Recurring Basis
Assets:
Equity investments		239,000
Debt securities		3,517,000
Total assets		3,756,000
Consolidated Funds \| Fair Value, Inputs, Level 1, 2 and 3 \| Fair Value, Recurring Basis
Assets:
Equity investments		293,000
Debt securities		3,517,000
Total assets		3,810,000
Consolidated Funds \| Fair Value Measured at Net Asset Value Per Share \| Fair Value, Recurring Basis
Assets:
Investments valued at net asset value		$ 1,536,000