Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023
Current Assets
Cash and cash equivalents	$ 26,849	$ 25,401
Restricted cash	1,000	1,000
Investments in securities at fair value, current	10,793	11,642
Accounts and other receivables (net of allowance for credit losses of $0, and $0, respectively)	1,109	1,245
Tax receivable	421	576
Prepaid expenses	337	510
Total Current Assets	40,509	40,374
Net Property and Equipment	1,136	1,138
Other Assets
Deferred tax asset	2,287	1,920
Investments in equity securities at fair value, non-current	1,127	1,563
Investments in available-for-sale debt securities at fair value (amortized cost: $7,414 and $7,729, respectively) (net of allowance for credit losses of $0, and $0, respectively)	6,343	7,008
Investments in held-to-maturity debt securities at amortized cost	1,000	1,000
Less: Allowance for credit losses	(205)	0
Investments in held-to-maturity debt securities, net of allowance for credit losses	795	1,000
Other investments	1,613	2,388
Financing lease, right of use assets	60	65
Other assets, non-current	222	217
Total Other Assets	12,447	14,161
Total Assets	54,092	55,673
Current Liabilities
Accounts payable	0	143
Accrued compensation and related costs	1,197	1,165
Dividends payable	324	329
Financing lease liability, short-term	30	28
Other accrued expenses	1,277	1,274
Total Current Liabilities	2,828	2,939
Long-Term Liabilities
Deferred tax liability	1	4
Reserve for uncertain tax positions	530	496
Financing lease liability, long-term	32	38
Total Long-Term Liabilities	563	538
Total Liabilities	3,391	3,477
Commitments and Contingencies (Note 13)
Shareholders’ Equity
Additional paid-in-capital	16,444	16,442
Treasury stock, class A shares at cost; 1,563,044 shares and 1,370,325 shares at September 30, 2023, and June 30, 2023, respectively	(4,342)	(3,740)
Accumulated other comprehensive income, net of tax	1,134	1,348
Retained earnings	37,066	37,747
Total Shareholders’ Equity	50,701	52,196
Total Liabilities and Shareholders’ Equity	54,092	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