Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

SIGNIFICANT ACCOUNTING POLICIES (Details 1) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 12,222	$ 25,452
Funds held by lender and restricted cash	5,147	198
Total cash, cash equivalents, and restricted cash	17,369	25,650	$ 30,406	$ 11,932
Restricted cash and cash equivalents	5,147	198
MacArthur Loan
Cash and Cash Equivalents [Line Items]
Restricted cash and cash equivalents	2,300	$ 200
Broadway Tower
Cash and Cash Equivalents [Line Items]
Restricted cash acquired through foreclosure	$ 2,800