Revenues (Schedule of Rent Revenues) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues [Abstract]
Base rents	$ 92,738,000	$ 95,987,000	$ 105,041,000
Expense recoveries	31,022,000	29,241,000	33,475,000
Percentage rent	1,347,000	1,778,000	971,000
Straight-line rents	270,000	(1,208,000)	405,000
Amortization of intangible lease liabilities, net	1,074,000	1,373,000	2,827,000
Total rents	$ 126,451,000	$ 127,171,000	$ 142,719,000