Government Programs (Details) $ in Thousands, $ in Millions	1 Months Ended		12 Months Ended
	Sep. 30, 2018 USD ($)	May 31, 2017 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 AUD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 AUD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 AUD ($)	Dec. 31, 2021 AUD ($)	Dec. 31, 2020 AUD ($)
Government Programs
Research and development tax incentive receivable			$ 2,792		$ 1,084
SBIR Grant
Government Programs
Reduction to research and development expenses					500		$ 1,400
Research and development grants	$ 1,500	$ 1,300
Grants receivable			0
Australian Taxation Office
Government Programs
Reduction to research and development expenses			3,100	$ 4.2	1,000	$ 1.4	$ 1,300	$ 1.9
Research and development tax incentive receivable			$ 2,800		$ 1,100				$ 3.8	$ 1.4