Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Jun. 30, 2023
Current Assets
Cash and cash equivalents	$ 27,460	$ 25,401
Restricted cash	1,000	1,000
Investments in securities at fair value, current	10,071	11,642
Accounts and other receivables (net of allowance for credit losses of $0, and $0, respectively)	1,027	1,245
Tax receivable	749	576
Prepaid expenses	635	510
Total Current Assets	40,942	40,374
Net Property and Equipment	1,154	1,138
Other Assets
Deferred tax asset	1,840	1,920
Investments in trading securities at fair value, non-current	1,435	1,563
Investments in available-for-sale debt securities at fair value (amortized cost: $6,651, and $7,729, respectively) (net of allowance for credit losses of $0, and $0, respectively)	5,190	7,008
Investments in held-to-maturity debt securities at amortized cost	1,000	1,000
Less: Allowance for credit losses	(157)	0
Investments in held-to-maturity debt securities, net of allowance for credit losses	843	1,000
Other investments	1,114	2,388
Financing lease, right of use assets	45	65
Other assets, non-current	209	217
Total Other Assets	10,676	14,161
Total VIE assets, maximum exposure to loss	52,772	55,673
Current Liabilities
Accounts payable	58	143
Accrued compensation and related costs	306	1,165
Dividends payable	317	329
Financing lease liability, short-term	31	28
Other accrued expenses	1,629	1,274
Total Current Liabilities	2,341	2,939
Long-Term Liabilities
Deferred tax liability	20	4
Reserve for uncertain tax positions	549	496
Financing lease liability, long-term	16	38
Total Long-Term Liabilities	585	538
Total Liabilities	2,926	3,477
Commitments and Contingencies (Note 14)
Shareholders’ Equity
Additional paid-in-capital	16,444	16,442
Treasury stock, class A shares at cost; 1,958,262 and 1,370,325 shares at March 31, 2024, and June 30, 2023, respectively	(5,456)	(3,740)
Accumulated other comprehensive income, net of tax	831	1,348
Retained earnings	37,628	37,747
Total Shareholders’ Equity	49,846	52,196
Total Liabilities and Shareholders’ Equity	52,772	55,673
Common Class A [Member]
Shareholders’ Equity
Common Stock	347	347
Common Class B [Member]
Shareholders’ Equity
Common Stock	0	0
Common Class C [Member]
Shareholders’ Equity
Common Stock	$ 52	$ 52