Number of new stock issued during the period.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Aug. 02, 2019	Jun. 30, 2019	Jun. 30, 2018
Subsequent Event [Line Items]
Proceeds from issuance of ordinary shares		$ 7,123	$ 20,055
Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from issuance of ordinary shares	$ 15,500
Issuance of ordinary shares	5,211,878