Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Related party transactions - Loan from significant shareholder - Madryn (Details) - Madryn - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Sep. 01, 2023
Subordinate convertible note
Related party transactions
Aggregate principal amount				$ 3,000,000
Interest expense	$ 178,018	$ 0
Madryn Credit Facility
Related party transactions
Aggregate principal amount	95,244,329		$ 82,731,638
Interest expense	3,630,827	$ 2,248,639
Amendment fee	$ 1,000,000