Note 3 - Net Patient Revenues (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue from Contract with Customer, Including Assessed Tax	$ 1,251,759,000	$ 1,087,614,000	$ 1,029,085,000
Accounts Receivable, Allowance for Credit Loss	9,702,000	8,054,000
Medicare and Medicaid [Member]
Accounts Receivable, Allowance for Credit Loss	15,351,000	18,369,000
Medicaid [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 12,749,000	$ 20,214,000	$ 19,442,000