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Accrued Liabilities (Tables)
 12 Months Ended
Dec. 31, 2020
Payables And Accruals [Abstract]  
Schedule of Accrued Liabilities

Accrued liabilities as of December 31, 2020 and 2019 consisted of the following (in thousands):

 

 

 

December 31,

 

 

 

2020

 

 

2019

 

Professional fees

 

$

3,219

 

 

$

1,011

 

Clinical and contract research organization costs

 

 

1,781

 

 

 

30

 

Travel and entertainment

 

 

91

 

 

 

157

 

Tax liabilities

 

 

1,767

 

 

 

2,062

 

Purchases of property and equipment

 

 

4,423

 

 

 

555

 

Other

 

 

1,881

 

 

 

556

 

Total accrued liabilities

 

$

13,162

 

 

$

4,371