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Prepaid Expenses and Other Current Assets (Tables)
9 Months Ended
Sep. 30, 2021
Prepaid Expenses And Other Current Assets [Abstract]  
Schedule of prepaid expenses and other current assets

Prepaid expenses and other current assets consisted of the following (in $000s):

 

December 31, 

September 30, 

    

2020

    

2021

Research and development tax credit receivable

$

1,313

$

2,514

Prepayments and VAT receivable

684

 

530

Other current assets

 

66

112

$

2,063

$

3,156