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Note 11 - Subsequent Events (Details Textual) - Southern New England Regional Cancer Center, LLC and Roger Williams Radiation Therapy, LLC [Member] - USD ($) | May 14, 2024 | May 07, 2024 | Nov. 10, 2023
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Business Acquisition, Percentage of Voting Interests Acquired |  |  | 60.00%
Business Combination, Consideration Transferred | $ 175,000 |  | $ 2,850,000
Forecast [Member] |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 60.00% |
Business Combination, Consideration Transferred | $ 175,000 | $ 2,850,000 |

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