Note 17 - Massachusetts and New Hampshire Skilled Nursing Facilities (Details Textual)		3 Months Ended		9 Months Ended
	May 03, 2022	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Revenue from Contract with Customer, Including Assessed Tax		$ 260,247,000	$ 254,817,000	$ 776,661,000	$ 708,648,000
Income (Loss) from Continuing Operations before Income Taxes, Domestic		(4,247,000)	(7,636,000)	19,818,000	128,999,000
Operations Transfer Agreements for Transfer of Skilled Nursing Facilities [Member]
Operations Agreement, Skilled Nursing Facilities Transferred	7
Operations Transfer Agreements for Transfer of Skilled Nursing Facilities [Member] | Seven Skilled Nursing Facilities [Member]
Revenue from Contract with Customer, Including Assessed Tax		13,214,000	17,907,000	48,697,000	50,149,000
Income (Loss) from Continuing Operations before Income Taxes, Domestic		$ 259,000	$ (1,360,000)	$ (2,831,000)	$ (7,257,000)