Note 1 - Basis of Presentation - Profit (Loss) Allocations to Reportable Segments (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net income (loss)	$ 119,000	$ 188,000
Medical Equipment Leasing [Member]
Net income (loss)	201,000	255,000
Direct Patient Services [Member]
Net income (loss)	$ (82,000)	$ (67,000)