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Note 10 - Rhode Island Acquisition (Details Textual) |  |  |  | 3 Months Ended | 8 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
May 07, 2024 USD ($) | Apr. 18, 2024 USD ($) | Nov. 10, 2023 USD ($) | Dec. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Number of Medical Centers |  |  |  |  |  |  | 7 |  |
Payments to Acquire Property, Plant, and Equipment |  |  |  |  |  |  | $ 9,618,000 | $ 3,278,000 |
Business Combination, Bargain Purchase, Gain Recognized, Amount |  |  |  |  |  |  | $ (0) | $ 3,942,000 |
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 | $ 115,000 | 115,000 |  |  |
Business Combination, Bargain Purchase, Gain Recognized, Deferred Tax Expense |  |  |  | $ 6,000 | $ 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 |  |  |

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