Note 1 - Basis of Presentation - Allocations to Reportable Segments (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Depreciation and amortization	$ 1,334,000	$ 1,367,000
Interest expense	349,000	271,000
Interest income	111,000	87,000
Income tax expense	(44,000)	68,000
Medical Equipment Leasing [Member]
Depreciation and amortization	1,092,000	1,189,000
Interest expense	316,000	271,000
Interest income	111,000	87,000
Income tax expense	42,000	59,000
Direct Patient Services [Member]
Depreciation and amortization	242,000	178,000
Interest expense	33,000	0
Interest income	0	0
Income tax expense	$ (86,000)	$ 9,000