Revenues - Schedule of revenue disaggregated by revenue source (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 162	$ 237
Research and development agreements [Member]
Disaggregation of Revenue [Line Items]
Revenue	162	225
Royalties on product sales [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 12

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details