Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Dec. 31, 2022	Jun. 30, 2022
Current Assets
Cash and cash equivalents	$ 23,416	$ 22,314
Restricted cash	1,000	1,000
Investments in securities at fair value, current	11,991	12,138
Accounts and other receivables	1,438	1,796
Tax receivable	294	384
Prepaid expenses	601	400
Total Current Assets	38,740	38,032
Net Property and Equipment	1,259	1,370
Other Assets
Deferred tax asset	1,609	872
Investments in equity securities at fair value, non-current	1,273	2,162
Investments in available-for-sale debt securities at fair value	8,127	10,625
Investments in held-to-maturity debt securities	1,000	1,000
Other investments	2,633	3,992
Financing lease, right of use assets	79	93
Other assets, non-current	231	216
Total Other Assets	14,952	18,960
Total Assets	54,951	58,362
Current Liabilities
Accounts payable	83	73
Accrued compensation and related costs	702	1,864
Dividends payable	335	337
Financing lease liability, short-term	28	27
Other accrued expenses	1,366	1,831
Total Current Liabilities	2,514	4,132
Long-Term Liabilities
Deferred tax liability	5	0
Financing lease liability, long-term	52	66
Total Long-Term Liabilities	57	66
Total Liabilities	2,571	4,198
Commitments and Contingencies (Note 12)
Shareholders’ Equity
Additional paid-in-capital	16,441	16,438
Treasury stock, class A shares at cost; 1,096,540 shares and 978,049 shares at December 31, 2022, and June 30, 2022, respectively	(2,958)	(2,599)
Accumulated other comprehensive income, net of tax	1,890	3,624
Retained earnings	36,608	36,302
Total Shareholders’ Equity	52,380	54,164
Total Liabilities and Shareholders’ Equity	54,951	58,362
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