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Prepaid Expenses and Other Current Asset (Tables)
12 Months Ended
Dec. 31, 2021
Prepaid Expenses and Other Current Asset  
Schedule of prepaid expenses and other current asset

December 31, 

    

2021

    

2020

(in thousands)

Deposits

$

225

$

Insurance

58

403

Sponsored research

 

 

97

Other current assets

 

12

 

24

Total prepaid expenses and other current assets

$

295

$

524