Leases (Details Narrative)	6 Months Ended
Jun. 30, 2020 properties
Leases, Operating [Textual]
Lease expiration, description	Certain leases have expired and the balance expire at various dates through November 30, 2029.
Number of holdover properties	43
Operating ground lease [Member]
Leases, Operating [Textual]
Lease expiration, description	The lease term (including renewal options) and expires on September 30, 2059.

A general description of the nature of the existing leasing arrangements of a lessor for all operating leases including, but not limited to: (1) guarantees or indemnities; (2) restrictions imposed by lease arrangements; (3) unusual provisions or conditions; (4) contingent rentals; and (5) lease expiration dates.

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121555071&loc=d3e37045-112695

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration