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Prepaid and Other Current Assets
 12 Months Ended
Dec. 31, 2021
Prepaid Expense And Other Assets Current [Abstract]  
Prepaid And Other Current Assets

7.

PREPAID AND OTHER CURRENT ASSETS

Prepaid and other current assets consisted of the following as of December 31, 2020 and 2021 (in thousands):

 

 

 

December 31,

2020

 

 

December 31,

2021

 

Prepaid inventory

 

$

4,361

 

 

$

4,137

 

Restricted cash

 

 

3,250

 

 

 

7,998

 

Prepaid insurance

 

 

1,504

 

 

 

2,440

 

Consulting fees

 

 

738

 

 

 

2,263

 

Amazon global logistics

 

 

—

 

 

 

2,865

 

Other

 

 

1,258

 

 

 

1,331

 

Prepaid and other current assets

 

$

11,111

 

 

$

21,034