Licensed rights and other intangible assets - Summary of Information about License Rights and Other Intangible Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	$ 8,220	$ 7,854
Finite-Lived Intangible Assets, Accumulated Amortization	1,598	1,042
Finite-Lived Intangible Assets, Net	6,622	6,812
Intangible assets, net, Gross Carrying Amount (Excluding Goodwill)	8,541	8,186
License rights and other intangible assets, net	6,943	7,144
Hormone therapy drug patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	6,225	5,834
Finite-Lived Intangible Assets, Accumulated Amortization	1,598	1,042
Finite-Lived Intangible Assets, Net	4,627	4,792
Hormone therapy drug candidate patents applied and pending [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	1,995	2,020
Finite-Lived Intangible Assets, Net	1,995	2,020
Trademarks/trade name rights [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets, Gross Carrying Amount and Net	$ 321	$ 332