Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Name:	us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

SUBSEQUENT EVENT (Narrative) (Details) - USD ($) $ in Thousands		1 Months Ended		12 Months Ended
	Aug. 14, 2017	Mar. 31, 2019	May 16, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Shares issued	200,803		216,158
Shares issued, value	$ 400		$ 700	$ 188	$ 400	$ 700
Subsequent Event [Member] \| Convertible preferred shares [Member]
Shares issued		109,649
Shares issued, value		$ 125