Accrued expenses and other current liabilities
6 Months Ended
Jun. 30, 2020
Accrued expenses and other current liabilities  
Accrued expenses and other current liabilities

5. Accrued expenses and other current liabilities

Accrued expenses and other current liabilities consisted of the following (in thousands):

 

 

 

 

 

 

 

 

 

 

June 30, 

    

December 31, 

 

    

2020

    

2019

Consulting fees

 

$

1,033

 

$

724

Salaries and bonuses

 

 

2,154

 

 

2,640

Social security contributions

 

 

278

 

 

177

Unearned grant income (current)

 

 

735

 

 

725

Loans

 

 

 —

 

 

1,224

Invoices not yet received

 

 

1,023

 

 

2,673

Finance lease liabilities

 

 

155

 

 

159

Other accruals and liabilities

 

 

22

 

 

84

 

 

$

5,400

 

$

8,406