Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Dec. 31, 2023		Dec. 31, 2022
Cash Flows from Operating Activities:
Net income (loss)	$ 1,053,000		$ 900,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, amortization and accretion	(65,000)		(144,000)
Net recognized (gain) loss on disposal of fixed assets	0		3,000
Net realized (gains) losses on securities	101,000		(905,000)
Unrealized (gains) losses on securities	181,000		2,842,000
Provision for deferred taxes	(45,000)		(274,000)
Allowance for credit losses	(55,000)	[1]	0
Changes in operating assets and liabilities:
Accounts and other receivables	213,000		448,000
Prepaid expenses and other assets	267,000		(202,000)
Accounts payable and other accrued liabilities	(740,000)		(1,540,000)
Total adjustments	(143,000)		228,000
Net cash provided by (used in) operating activities	910,000		1,128,000
Cash Flows from Investing Activities:
Purchase of property and equipment	(111,000)		(14,000)
Purchase of trading securities at fair value, non-current	(215,000)		0
Purchase of other investments	0		(477,000)
Proceeds from principal paydowns of available-for-sale debt securities at fair value	1,500,000		1,500,000
Return of capital on other investments	0		5,000
Net cash provided by (used in) investing activities	2,955,000		1,014,000
Cash Flows from Financing Activities:
Principal payments on financing lease	(15,000)		(13,000)
Issuance of common stock	34,000		27,000
Repurchases of common stock	(1,171,000)		(382,000)
Dividends paid	(648,000)		(672,000)
Net cash provided by (used in) financing activities	(1,800,000)		(1,040,000)
Net increase (decrease) in cash, cash equivalents, and restricted cash	2,065,000		1,102,000
Beginning cash, cash equivalents, and restricted cash	26,401,000		23,314,000
Ending cash, cash equivalents, and restricted cash	28,466,000		24,416,000
Supplemental Disclosures of Non-Cash Investing and Financing Activities
Dividends declared but not paid	322,000		335,000
Excise tax liability accrued on stock repurchases	12,000		0
Unsettled sales of non-current trading securities	181,000		0
Unsettled class A common stock repurchases	40,000		4,000
Supplemental Disclosures of Cash Flow Information
Cash paid for income taxes	0		470,000
Trading Securities, Current [Member]
Cash Flows from Investing Activities:
Proceeds on sale of trading securities at fair value, current	1,600,000		0
Trading Securities, Non-current [Member]
Cash Flows from Investing Activities:
Proceeds on sale of trading securities at fair value, current	$ 181,000		$ 0

[1] Represents the change in present value attributable to the passage of time included in interest income.