Revenues - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) PerformanceObligation	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract description			For revenues related to the BARDA contract within the scope of ASC 606, the Company identified two performance obligations: (i) the procurement of 5,614 RECELL units; and (ii) emergency preparedness services.
Capiitalized fulfilment costs	$ 378,000		$ 378,000		$ 504,000
Performance obligation estimated revenue expected to be recognised	813,000		813,000		952,000
Contract with customer assets	0		0		0
Contract with customers non current liability	813,000		813,000		952,000
Contract with customer liability revenue recognized	93,000	$ 96,000	186,000	$ 154,000
Contract cost amortization			169,000	129,000
Contract cost impairment loss	0	0	0	0
Cost of Sales
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract cost amortization	84,000	80,000	169,000	129,000
Other Noncurrent Assets
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Capiitalized fulfilment costs	378,000		$ 378,000		504,000
BARDA
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract description			For the contract with BARDA, the Company identified two performance obligations (i) the procurement of 5,614 RECELL units; and (ii) emergency preparedness services.
Number of performance obligations | PerformanceObligation			2
BARDA | RECELL system
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Number of units will be delivered			5,614
Product replacement obligation cost			$ 0
Deferred cost	52,000		52,000		64,000
Services recognised	93,000	$ 96,000	186,000	$ 154,000
Performance obligation estimated revenue expected to be recognised	378,000		378,000		517,000
Japanese Pharmaceuticals and Medical Device Act Approval | RECELL system
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation estimated revenue expected to be recognised	$ 435,000		$ 435,000		$ 435,000