Reporting Segment and Geographic Information - Schedule Of Revenue By Region And Customer Type, Commercial Revenue By Product And Cost of Sales By Customer Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue:
Revenues	$ 19,546	$ 13,645	$ 45,845	$ 35,948
Cost of sales
Cost of sales	3,190	2,113	6,814	5,984
BARDA deferred costs				(147)
Commercial Sales
Revenue:
Revenues	19,482	13,547	45,681	35,673
Cost of sales
Cost of sales	3,190	2,110	6,814	5,835
Commercial Sales | RECELL
Revenue:
Revenues	19,059	13,547	44,811	35,673
Commercial Sales | Other Wound Care Products
Revenue:
Revenues	271		706
Commercial Sales | Lease Revenue
Revenue:
Revenues	152		164
Deferred Commercial Revenue Recognized
Revenue:
Revenues	8	8	25	25
BARDA Revenue For Right of First Access
Revenue:
Revenues	56	90	139	250
Product Cost
Cost of sales
BARDA deferred costs		(83)		(106)
Emergency Preparedness Service Cost
Cost of sales
BARDA deferred costs		86		255
United States
Revenue:
Revenues	19,048	12,961	44,162	33,379
Japan
Revenue:
Revenues	388	581	1,237	2,309
European Union
Revenue:
Revenues	0		155
Australia
Revenue:
Revenues	54	61	132	156
United Kingdom
Revenue:
Revenues	$ 56	$ 42	$ 159	$ 104