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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, 2021
Dec. 31, 2020
Deferred Costs And Other Assets [Line Items]    
Lease origination costs, 2022 $ 2,311,000  
Lease origination costs, 2023 2,046,000  
Lease origination costs, 2024 1,733,000  
Lease origination costs, 2025 1,451,000  
Lease origination costs, 2026 1,263,000  
Lease origination costs, thereafter 6,429,000  
Lease origination costs 15,233,000 $ 22,331,000
Financing costs 3,129,000 2,002,000
Unsecured Revolving Credit Facility [Member]    
Deferred Costs And Other Assets [Line Items]    
Financing costs, 2022 424,000  
Financing costs, 2023 424,000  
Financing costs, 2024 286,000  
Financing costs $ 1,134,000 $ 623,000