REAL ESTATE PROPERTY, NET (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cost:
Real estate property cost, beginning	$ 226,482	$ 229,742
Additions	13,461	(3,260)
Real estate property cost, ending	239,943	226,482
Accumulated depreciation:
Real estate property accumulated depreciation, beginning	18,792	14,902
Depreciation charge for the year	4,425	3,890
Real estate property accumulated depreciation, ending	23,217	18,792
Real estate property, net:
Real estate property, net	216,726	207,690	$ 214,840
Land [Member]
Cost:
Real estate property cost, beginning	33,874	33,874
Additions
Real estate property cost, ending	33,874	33,874
Accumulated depreciation:
Real estate property accumulated depreciation, beginning
Depreciation charge for the year
Real estate property accumulated depreciation, ending
Real estate property, net:
Real estate property, net	33,874	33,874
Building [Member]
Cost:
Real estate property cost, beginning	186,829	184,860
Additions	1,945	1,969
Real estate property cost, ending	188,774	186,829
Accumulated depreciation:
Real estate property accumulated depreciation, beginning	17,509	13,878
Depreciation charge for the year	3,696	3,631
Real estate property accumulated depreciation, ending	21,205	17,509
Real estate property, net:
Real estate property, net	167,569	169,320
Condominium Units [Member]
Cost:
Real estate property cost, beginning	20,455	19,974
Additions	250	481
Real estate property cost, ending	20,705	20,455
Accumulated depreciation:
Real estate property accumulated depreciation, beginning	1,720	1,326
Depreciation charge for the year	394	394
Real estate property accumulated depreciation, ending	2,114	1,720
Real estate property, net:
Real estate property, net	18,591	18,735
Currency translation adjustment [Member]
Cost:
Real estate property cost, beginning	(14,676)	(8,966)
Additions	11,266	(5,710)
Real estate property cost, ending	(3,410)	(14,676)
Accumulated depreciation:
Real estate property accumulated depreciation, beginning	(437)	(302)
Depreciation charge for the year	335	(135)
Real estate property accumulated depreciation, ending	(102)	(437)
Real estate property, net:
Real estate property, net	$ (3,308)	$ (14,239)

Additions to real estate investments during the period.

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- Definition

Amount of accumulated depreciation pertaining to real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28.FN4)
-URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule III)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

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Amount of increase (decrease) in accumulated depreciation on real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule III)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28.FN4)
-URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024

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- Definition

Amount, before accumulated depreciation, of real estate investments for entities with a substantial portion of business acquiring and holding investment real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule III)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 970
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-28.4)
-URI http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024

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- Definition

Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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