Summary of Significant Accounting Policies (Narrative) (Details)	3 Months Ended			12 Months Ended
	Mar. 31, 2022 USD ($) segment property	Dec. 31, 2021 USD ($) segment	Mar. 31, 2021 USD ($) segment	Dec. 31, 2021 USD ($) segment
Lessee, Lease, Description [Line Items]
Rent collections percent	100.00%
Additional CARES Act funding	$ 0		$ 5,100,000
Remaining lease term	5 years
Bad debt expense	$ 426,000		$ 198,000
Assets held for sale	$ 0	$ 0		$ 0
Number of reportable segments | segment	2	2	2	3
Number of senior housing communities | property	50
Deferred tax asset	$ 4,700,000	$ 4,200,000		$ 4,200,000
Minimum
Lessee, Lease, Description [Line Items]
Lease intangibles, lease-up period	6 months
Maximum
Lessee, Lease, Description [Line Items]
Lease intangibles, lease-up period	24 months
Building
Lessee, Lease, Description [Line Items]
Property, plant and equipment, useful life	40 years
Land Improvements
Lessee, Lease, Description [Line Items]
Property, plant and equipment, useful life	15 years
Furniture and Fixtures | Minimum
Lessee, Lease, Description [Line Items]
Property, plant and equipment, useful life	7 years
Furniture and Fixtures | Maximum
Lessee, Lease, Description [Line Items]
Property, plant and equipment, useful life	10 years
Seniors Housing Communities
Lessee, Lease, Description [Line Items]
Ancillary revenue	$ 0		$ 1,800,000