The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The additional percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Note D - Medical Oncology Partners (Details Textual) - USD ($)				1 Months Ended	6 Months Ended		12 Months Ended
	Dec. 31, 2022	Dec. 31, 2016	Dec. 22, 2016	Apr. 30, 2015	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2021
Equity Method Investments					$ 193,000		$ 189,000
Income (Loss) from Equity Method Investments					$ 4,000	$ (266,000)
Medical Oncology Partners (MOP) [Member]
Payments for Advance to Affiliate							$ 47,000
Dr. Jaime Lozano [Member] \| Medical Oncology Partners (MOP) [Member]
Payments to Acquire Equity Method Investments				$ 345,000
Equity Method Investment, Ownership Percentage				76.67%
Equity Method Investment, Additional Ownership Percentage			5.00%
Other Investors [Member] \| Medical Oncology Partners (MOP) [Member]
Payments to Acquire Equity Method Investments				$ 105,000
One Care Oncology Partners, LLC [Member] \| Medical Oncology Partners (MOP) [Member]
Proceeds from Sale of Productive Assets	$ 2,060,000
Medical Oncology Partners [Member] \| UOMA [Member]
Subsidiary, Ownership Percentage, Parent				100.00%
USN Corona, Inc. (“USNC”) [Member] \| Medical Oncology Partners (MOP) [Member]
Equity Method Investment, Ownership Percentage			35.83%
Equity Method Investments		$ 149,000	$ 161,000
Income (Loss) from Equity Method Investments		$ (12,000)						$ 231,000
USN Corona, Inc. (“USNC”) [Member] \| Dr. Jaime Lozano [Member]
Payments for Advance to Affiliate				$ 173,000
USN Corona, Inc. (“USNC”) [Member] \| One Care Oncology Partners, LLC [Member] \| Medical Oncology Partners (MOP) [Member]
Proceeds from Sale of Productive Assets	$ 1,300,000
Medical Oncology Partners (MOP) [Member] \| United Oncology Medical Associates of Florida, LLC (“UOMA”) [Member]
Subsidiary, Ownership Percentage, Parent				100.00%
Payments to Acquire Interest in Subsidiaries and Affiliates				$ 450,000