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Prepaid expenses and other assets (Tables)
3 Months Ended
Mar. 31, 2022
Prepaid expenses and other assets  
Schedule of prepaid expenses and other current assets

(in thousands)

    

March 31, 2022

    

December 31, 2021

Prepaid insurance

$

1,422

$

2,019

Research and development advance payments

636

586

Unbilled reimbursement receivable from DoD

 

795

 

1,638

Other prepaids and short-term deposits

571

492

Reimbursement receivable from DoD

2,674

$

3,424

$

7,409