Note 1 - Basis of Presentation - Allocations to Reportable Segments (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Depreciation and amortization	$ 1,523,000	$ 1,252,000	$ 2,857,000	$ 2,609,000
Interest expense	385,000	277,000	734,000	548,000
Interest income	77,000	110,000	189,000	197,000
Income tax expense	(31,000)	(35,000)	(75,000)	33,000
Medical Equipment Leasing [Member]
Depreciation and amortization	1,219,000	1,074,000	2,311,000	2,254,000
Interest expense	352,000	277,000	668,000	548,000
Interest income	77,000	110,000	189,000	197,000
Income tax expense	71,000	(51,000)	12,000	10,000
Direct Patient Services [Member]
Depreciation and amortization	304,000	178,000	546,000	355,000
Interest expense	33,000	0	66,000	0
Interest income	0	0	0	0
Income tax expense	$ (102,000)	$ 16,000	$ (87,000)	$ 23,000