Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2022

Accounting Policies [Abstract]

Schedule of Concentration of Risk

The Company’s partners in collaboration and license agreements who represent 10% or more of the Company’s total revenue are as follows:

	Three Months Ended March 31,
	2022	2021
Customer A	*	80%
Customer B	98%	20%
Total	98%	100%

* Less than 10%

The Company’s partners in collaboration and license agreements who represent 10% or more of the Company’s total accounts receivable are as follows:

	March 31, 2022	December 31, 2021
Customer A	0%	100%
Total	0%	100%

Schedule of Revenues by Geographic Region

The Company’s total revenues by geographic region, based on the location of the customer, are as follows (in thousands):

	Three Months Ended March 31,
	2022		2021
Netherlands	$	1,191	$	392
Switzerland		—		1,605
United States		28		3
Total revenue	$	1,219	$	2,000

Schedule of Impact of Adoption of New Accounting Standard

The following table summarizes the effect of the adoption of ASC 842 on the condensed statement of cash flows for the three months ended March 31, 2021 (in thousands):

	Pre ASC 842					After ASC 842
	Three Months Ended		ASC 842			Three Months Ended
	March 31, 2021		Adjustments			March 31, 2021
Adjustments to reconcile net loss to net cash    used in operating activities
Amortization of right-of-use assets	$	—	$	365		$	365
Changes in operating assets and liabilities
Operating lease liabilities		—		(365	)		(365	)
Supplemental disclosures of noncash investing and financing information
Decrease in right-of-use assets due to reduction in operating lease liabilities upon modification		—		(478	)		(478	)

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