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CAPITAL LEASES AND OTHER OBLIGATIONS (Details Textual)
$ in Thousands
1 Months Ended 9 Months Ended
Apr. 30, 2018
ft²
Oct. 20, 2017
USD ($)
a
Sep. 30, 2018
USD ($)
Dec. 31, 2017
USD ($)
Debt Instrument [Line Items]        
Cost of assets under capital lease     $ 461 $ 461
Accumulated depreciation     427 379
Land Subject to Ground Leases 12,494 41,715    
Tenant Improvements   $ 200    
Lessee Operating Sublease Rent Description   first year of the sublease, the rent per square foot is $7.50, increasing to $19.75 during the second year of the sublease and each year thereafter for the initial term increasing by an additional $1 per square foot.    
Lessee, Operating Sublease, Option to Extend   June 30, 2025    
Deferred Rent Credit, Noncurrent     $ 559 $ 0
Rate Per Square Feet | ft² 26.50      
Maximum        
Debt Instrument [Line Items]        
Imputed interest rate on lease     10.00%  
Minimum        
Debt Instrument [Line Items]        
Imputed interest rate on lease     2.00%