Prepaid expenses and other assets

12 Months Ended

Dec. 31, 2022

Prepaid expenses and other assets

Prepaid expenses and other assets

3. Prepaid expenses and other current assets

Prepaid expenses and other current assets consisted of the following:

	December 31,
(in thousands)	2022		2021
Prepaid subscriptions, prepaid service contracts and short-term deposits	$	876	$	492
CARES Act employee retention credit receivable		847		—
Research and development advance payments		445		586
Prepaid insurance		158		2,019
Reimbursement receivable from the DoD		—		2,674
Unbilled reimbursement receivable from the DoD		—		1,638
	$	2,326	$	7,409