Quarterly report pursuant to Section 13 or 15(d)

Revenue - Schedule of Receivables (Details)

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Revenue - Schedule of Receivables (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Trade receivables $ 1,593 $ 1,119
Total grant receivables 8,259 7,188
Contract assets 529 560
Other receivables 265 328
Receivables 10,646 9,195
Unbilled    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total grant receivables 6,681 5,610
Other grant receivables    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total grant receivables $ 1,578 $ 1,578