Other Assets And Deferred Charges, Net (Schedule Of Future Charges Of Unamortized Balances Of Deferred Lease Origination Costs And Deferred Financing Costs) (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Deferred Costs And Other Assets [Line Items]
Lease origination costs, 2019	$ 3,194,000
Lease origination costs, 2020	2,576,000
Lease origination costs, 2021	2,193,000
Lease origination costs, 2022	1,860,000
Lease origination costs, 2023	1,568,000
Lease origination costs, thereafter	10,232,000
Lease origination costs	21,623,000	$ 19,343,000
Financing costs	3,536,000
Unsecured Revolving Credit Facility [Member]
Deferred Costs And Other Assets [Line Items]
Financing costs, 2019	610,000
Financing costs, 2020	610,000
Financing costs, 2021	407,000
Financing costs	$ 1,627,000	$ 2,207,000