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Prepaid expenses and other assets (Tables)
6 Months Ended
Jun. 30, 2023
Prepaid expenses and other assets  
Schedule of prepaid expenses and other current assets

(in thousands)

    

June 30, 2023

    

December 31, 2022

Prepaid subscriptions and service contracts

$

497

$

876

Prepaid insurance

271

158

CARES Act employee retention credit receivable

208

847

Research and development advance payments

134

445

$

1,110

$

2,326