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General and Administrative Expenses - Schedule of General and Administrative Expenses (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share-based compensation $ 1,099 $ 1,399
General and administrative expenses 4,192 4,729
General and Administrative Expense [Member]    
Payroll and related expenses 850 1,136
Share-based compensation 968 1,160
Professional services 1,224 1,133
Travel 251 231
Marketing expenses 0 23
Office and maintenance expenses 157 176
Depreciation 8 29
Public and investor relations 227 339
Insurance 266 225
Government fees 176 191
Other 65 86
General and administrative expenses $ 4,192 $ 4,729