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Accrued Expenses (Tables)
 12 Months Ended
Dec. 31, 2018
Payables And Accruals [Abstract]  
Schedule of Accrued Expenses

Accrued expenses consisted of the following (amounts in thousands):

 

 

As of December 31,

 

 

 

2018

 

 

2017

 

Employees benefits

 

$

876

 

 

$

442

 

Professional services

 

 

518

 

 

 

88

 

Legal expense

 

 

253

 

 

 

343

 

Advance from U.S Army

 

 

—

 

 

 

233

 

Rent

 

 

98

 

 

 

97

 

Severance

 

 

66

 

 

 

38

 

Other

 

 

1

 

 

 

1

 

 

 

$

1,812

 

 

$

1,242