Note 7 - Long-term Leases (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)
Lessee, Operating Lease, Liability, to be Paid, Year One	$ 35,736,000		$ 35,736,000
Lessee, Operating Lease, Liability, to be Paid, Year Two	19,031,000		19,031,000
Operating Lease, Expense	$ 11,328,000	$ 10,570,000	$ 22,693,000	$ 20,918,000
NHI Lease Agreement [Member]
Number of Skilled Nursing Centers Leased from NHI	28		28
Number of Assisted Living Centers Leased from NHI	5		5
Number of Independent Living Centers Leased from NHI	3		3
Number of Skilled Nursing Facilities Subleased	4		4
Lessee, Operating Lease, Liability, to be Paid, Year One	$ 32,225,000		$ 32,225,000
Lessee, Operating Lease, Liability, to be Paid, Year Two	31,975,000		31,975,000
Operating Lease, Expense	$ 9,903,000	$ 9,814,000	$ 19,814,000	$ 19,286,000