Note 11 - Rhode Island Acquisition (Details Textual)				3 Months Ended		8 Months Ended	12 Months Ended
	May 07, 2024 USD ($)	Apr. 18, 2024 USD ($)	Nov. 10, 2023 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)
Payments to Acquire Property, Plant, and Equipment				$ 4,015,000	$ 1,183,000
Southern New England Regional Cancer Center, LLC and Roger Williams Radiation Therapy, LLC [Member]
Business Combination, Consideration Transferred	$ 5,125,000		$ 2,850,000			$ 4,925,000
Business Acquisition, Percentage of Voting Interests Acquired			60.00%
Number of Medical Centers			3
Business Combination, Bargain Purchase, Gain Recognized, Initial Accounting Incomplete, Adjustments						115,000
Business Combination, Bargain Purchase, Gain Recognized, Deferred Tax Expense						6,000	$ 1,220,000
Business Combination, Bargain Purchase, Gain Recognized, Amount	3,679,000					3,794,000	$ 3,794,000
Southern New England Regional Cancer Center, LLC and Roger Williams Radiation Therapy, LLC [Member] | GE Discovery RT CT Simulator [Member]
Payments to Acquire Property, Plant, and Equipment	$ 175,000	$ 175,000				$ 175,000