Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
At-the-Market Offering [Member]
Issuance expenses paid		$ 123
Investment Agreement [Member]
Issuance expenses paid		343
Best Efforts [Member]
Issuance expenses paid	686
Registered Direct [Member]
Issuance expenses paid	1,035
Warrant Exercise [Member]
Issuance expenses paid	$ 1,019