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Percentage of real estate portfolio occupied.

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- Definition

Square Feet in Conference Center

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Tenant Reimbursement Revenue

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- Definition

Other operating costs incurred during the reporting period and may include amounts paid to maintain the property.

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Total costs of sales and operating expenses for the period.

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The number of real estate properties owned as of the balance sheet date.

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Amount of income (expense) related to nonoperating activities, classified as other.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate total of real estate taxes and insurance expense.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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REAL ESTATE (Office Property) (Details) $ in Thousands	3 Months Ended								12 Months Ended
REAL ESTATE (Office Property) (Details) $ in Thousands	Dec. 31, 2019 USD ($) ft² property	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) ft² property	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Real Estate Properties [Line Items]
Total revenues	$ 15,462	$ 18,747	$ 19,336	$ 15,196	$ 15,991	$ 19,993	$ 19,463	$ 14,835	$ 68,741	$ 70,282	$ 51,968
Total expenses									$ 87,709	95,672	57,400
Accounting Standards Update 2016-02 \| Office Revenue
Real Estate Properties [Line Items]
Tenant reimbursement revenue										2,500	900
Office Building
Real Estate Properties [Line Items]
Number of real estate properties \| property	3								3
Rentable square feet \| ft²	806,115								806,115
Percentage of portfolio occupied	68.00%								68.00%
Rental income									$ 27,978	29,104	15,204
Tenant reimbursements and other income									852	837	403
Total revenues									28,830	29,941	15,607
Cost of Other Property Operating Expense									9,349	8,362	3,636
Real estate taxes and insurance									4,356	3,960	1,736
Total expenses									13,705	$ 12,322	$ 5,372
Office Building \| 210 West 31st Street
Real Estate Properties [Line Items]
Real estate taxes and insurance									500
Operating, maintenance, and management									$ 700