General and Administrative Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
General and administrative expenses	$ 2,587	$ 3,171
Salaries [Member]
General and administrative expenses	554	617
Professional services [Member]
General and administrative expenses	721	813
Share based payments for consultants, directors and employees [Member]
General and administrative expenses	352	949
Rent, office expenses and communication [Member]
General and administrative expenses	285	194
Insurance [Member]
General and administrative expenses	296	149
Travel [Member]
General and administrative expenses	66	144
Directors [Member]
General and administrative expenses	45	57
Other [Member]
General and administrative expenses	$ 268	$ 248