Revenues (Schedule of Rental Revenues) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues [Abstract]
Base rents	$ 5,878,000	$ 7,686,000	$ 11,796,000	$ 15,493,000
Expense recoveries	2,201,000	2,476,000	4,143,000	5,094,000
Percentage rent	146,000	122,000	269,000	363,000
Straight-line rents	(19,000)	159,000	(87,000)	171,000
Amortization of intangible lease liabilities, net	161,000	160,000	322,000	324,000
Total rents	$ 8,367,000	$ 10,603,000	$ 16,443,000	$ 21,445,000