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Note 3 - Net Patient Revenues (Details Textual) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Revenue from Contract with Customer, Including Assessed Tax | $ 285,823,000 | $ 258,007,000 |
Contract with Customer, Liability, Current | 7,667,000 |  | $ 0
Accounts Receivable, Allowance for Credit Loss | 9,174,000 |  | 8,054,000
Medicare and Medicaid [Member] |  |  |
Accounts Receivable, Allowance for Credit Loss | 19,988,000 |  | $ 18,369,000
Medicaid [Member] |  |  |
Revenue from Contract with Customer, Including Assessed Tax | $ 3,462,000 | $ 4,883,000 |

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