Note 11 - Rhode Island Acquisition - Major Classes of Assets and Liabilities (Details) - USD ($)				3 Months Ended		8 Months Ended	12 Months Ended
	May 07, 2024	Apr. 18, 2024	Nov. 10, 2023	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2024	May 07, 2025
CT Sim				$ (4,015,000)	$ (1,183,000)
Southern New England Regional Cancer Center, LLC and Roger Williams Radiation Therapy, LLC [Member]
Cash and cash equivalents	$ 3,388,000					$ 3,388,000	$ 3,388,000
Accounts receivable	919,000					377,000	377,000
Accounts receivable						(542,000)
Property, Plant, and Equipment								$ 7,100,000
ROU assets	1,835,000					1,835,000	1,835,000
Unfavorable leasehold interests	(1,227,000)					(776,000)	(776,000)
Unfavorable leasehold interests						451,000
Total assets acquired	12,015,000					11,924,000	11,924,000
Total assets acquired						(91,000)
Accounts payable	(150,000)					(150,000)	(150,000)
Lease liabilities	(1,835,000)					(1,835,000)	(1,835,000)
Deferred income taxes	(1,226,000)					(1,220,000)	(1,220,000)
Deferred income taxes						6,000
Gain on bargain purchase	(3,679,000)					(3,794,000)	(3,794,000)
Gain on bargain purchase						(115,000)
Business Combination, Consideration Transferred	5,125,000		$ 2,850,000			4,925,000
Base purchase consideration						(200,000)
Non-controlling interest	(2,100,000)					(1,900,000)	(1,900,000)
Non-controlling interest						200,000
Cash paid by the Company	2,850,000					2,850,000
Southern New England Regional Cancer Center, LLC and Roger Williams Radiation Therapy, LLC [Member] | Medical Equipment [Member]
Property, Plant, and Equipment	2,403,000					2,403,000	2,403,000	2,403,000
Southern New England Regional Cancer Center, LLC and Roger Williams Radiation Therapy, LLC [Member] | Medical Facilities [Member]
Property, Plant, and Equipment	4,697,000					4,697,000	$ 4,697,000	$ 4,697,000
Southern New England Regional Cancer Center, LLC and Roger Williams Radiation Therapy, LLC [Member] | GE Discovery RT CT Simulator [Member]
CT Sim	$ (175,000)	$ (175,000)				$ (175,000)