Financial Expenses, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Income and Expenses [Abstract]
Foreign currency transactions and other	$ (34)	$ 42	$ (188)
Financial expenses related to loan agreement with Kreos	1,499	2,398	2,451
Bank commissions	31	26	30
Financial expenses, net	$ 1,496	$ 2,466	$ 2,293