Debt - Summary of Non-convertible Debt Outstanding (Details) - Non-convertible Debt - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total debt obligation	$ 34,208	$ 37,835
Unamortized loan discount and issuance costs	(1,016)	(754)
Total debt obligation carrying amount	33,192	37,081
Current portion	3,177	1,950
Long-term portion	30,015	35,131
Italian Economic Development Agency Loan
Debt Instrument [Line Items]
Total debt obligation	323	525
Intesa Sanpaolo Loan 1
Debt Instrument [Line Items]
Total debt obligation	7,384	8,507
Intesa Sanpaolo Loan 2
Debt Instrument [Line Items]
Total debt obligation	5,225	5,672
Horizon 2020 Loan
Debt Instrument [Line Items]
Total debt obligation	414	486
RIF Shareholders Loan
Debt Instrument [Line Items]
Total debt obligation	15,674	17,015
UniCredit Loan
Debt Instrument [Line Items]
Total debt obligation	$ 5,188	$ 5,630

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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