Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Tax Abatement Agreements) (Narrative) (Details)

v3.5.0.2
Commitments And Contingencies (Tax Abatement Agreements) (Narrative) (Details) - USD ($)
 3 Months Ended 9 Months Ended 16 Months Ended 60 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Apr. 30, 2017
Apr. 30, 2022
Harborside Plaza 4-A [Member]            
Commitments And Contingencies [Line Items]            
Project period     20 years      
Percentage of PILOT on project costs     2.00%      
Total project costs     $ 49,500,000      
Payments in lieu of property taxes (PILOT) $ 279,000 $ 247,000 $ 798,000 $ 742,000    
Harborside Plaza 5 [Member]            
Commitments And Contingencies [Line Items]            
Project period     20 years      
Percentage of PILOT on project costs     2.00%      
Total project costs     $ 170,900,000      
Payments in lieu of property taxes (PILOT) 1,100,000 $ 854,000 $ 2,900,000 $ 2,600,000    
Port Imperial South 4/5 Garage [Member]            
Commitments And Contingencies [Line Items]            
Project period     5 years      
Port Imperial South 4/5 Garage [Member] | Tax Year 1 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     0.00%      
Port Imperial South 4/5 Garage [Member] | Tax Year 2 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     80.00%      
Port Imperial South 4/5 Garage [Member] | Tax Year 3 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     80.00%      
Port Imperial South 4/5 Garage [Member] | Tax Year 4 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     80.00%      
Port Imperial South 4/5 Garage [Member] | Tax Year 5 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     80.00%      
Port Imperial South 1/3 Garage [Member]            
Commitments And Contingencies [Line Items]            
Project period     5 years      
Percentage of taxes paid based on the land value     100.00%      
Port Imperial South 1/3 Garage [Member] | Tax Year 1 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     0.00%      
Port Imperial South 1/3 Garage [Member] | Tax Year 2 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     95.00%      
Port Imperial South 1/3 Garage [Member] | Tax Year 3 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     95.00%      
Port Imperial South 1/3 Garage [Member] | Tax Year 4 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     95.00%      
Port Imperial South 1/3 Garage [Member] | Tax Year 5 [Member]            
Commitments And Contingencies [Line Items]            
Annual percentage of cost for phase in     95.00%      
Port Imperial Hotel Development [Member]            
Commitments And Contingencies [Line Items]            
Project period     15 years      
Percentage of PILOT on project costs     2.00%      
Port Imperial South 11 Development [Member]            
Commitments And Contingencies [Line Items]            
Project period     15 years      
Percentage of PILOT on gross revenues     10.00%      
111 River Realty [Member]            
Commitments And Contingencies [Line Items]            
Payments in lieu of property taxes (PILOT) $ 306,927          
111 River Realty [Member] | Scenario, Forecast [Member]            
Commitments And Contingencies [Line Items]            
Annual Payments in lieu of property taxes (PILOT)         $ 1,227,708 $ 1,406,064