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Note 1 - Business and Basis of Presentation (Details Textual)	Dec. 31, 2024 USD ($)	May 07, 2024 USD ($)	Nov. 10, 2023 USD ($)	Jun. 28, 2024	Apr. 27, 2022
Number of Medical Centers	10
Newco Guadalajara [Member]
Equity Method Investment, Ownership Percentage				70.00%
Newco Guadalajara [Member] | HSJ [Member]
Equity Method Investment, Ownership Percentage				30.00%
Newco [Member]
Equity Method Investment, Ownership Percentage					85.00%
Newco [Member] | Guadalupe [Member]
Equity Method Investment, Ownership Percentage					15.00%
OR21, LLC [Member]
Equity Method Investment, Ownership Percentage	50.00%
OR21, LLC [Member] | Architectural Design Company [Member]
Equity Method Investment, Ownership Percentage	50.00%
Southern New England Regional Cancer Center, LLC and Roger Williams Radiation Therapy, LLC [Member]
Number of Medical Centers	3
Business Combination, Consideration Transferred	$ 4,925,000	$ 5,125,000	$ 2,850,000
Business Acquisition, Percentage of Voting Interests Acquired			60.00%

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