Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, € in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($) Segment $ / shares	Sep. 30, 2023 EUR (€)	May 03, 2023 $ / shares	Dec. 31, 2022 $ / shares	Sep. 30, 2022 $ / shares	Aug. 17, 2022 $ / shares
Accounting Policies [Line Items]
Ordinary shares, par value \| $ / shares	$ 0.01		$ 0.01	$ 0.01	$ 0.01	$ 0.01
Number of business segments \| Segment	1
October 2020 Offering
Accounting Policies [Line Items]
Ordinary shares, par value \| $ / shares	$ 0.01				0.01
June 3, 2020 SPA
Accounting Policies [Line Items]
Ordinary shares, par value \| $ / shares	0.01				0.01
June 30, 2020 SPA
Accounting Policies [Line Items]
Ordinary shares, par value \| $ / shares	$ 0.01				$ 0.01
Warrants Issued \| October 2020 Offering
Accounting Policies [Line Items]
Restricted cash \| $	$ 11
Warrants Issued \| June 3 SPA
Accounting Policies [Line Items]
Restricted cash \| $	17
Warrants Issued \| June 30 SPA
Accounting Policies [Line Items]
Restricted cash \| $	6
Maximum
Accounting Policies [Line Items]
Cash, FDIC insured amount \| $	250
Cash, DGS insured amount	$ 106	€ 100