Consolidated Statements of Changes in Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Issuance costs			$ 467	$ 389
Restricted stock award, shares	483	2	695	2
Represents equity value, description			Represents an amount less than $1 thousand
Common Stock [Member]
Issuance costs	$ 467	$ 557	$ 467	$ 1,053