Government Programs (Details)		1 Months Ended	3 Months Ended
	May 31, 2017 USD ($)	Jul. 31, 2016 USD ($)	Mar. 31, 2018 AUD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2017 AUD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 AUD ($)	Dec. 31, 2017 USD ($)
Government Programs
Research and development tax incentive receivable			$ 2,500,000				$ 1,918,000	$ 1,700,000	$ 1,347,000
SBIR Grant [Member]
Government Programs
Reduction of research and development expenses related to tax				$ 61,000		$ 0
Research and development grants	$ 1,300,000	$ 219,000
Australian Taxation Office [Member]
Government Programs
Reduction of research and development expenses related to tax			$ 770,000	$ 604,000	$ 134,000	$ 103,000
Overseas Findings [Member] | Australian Taxation Office [Member]
Government Programs
Grants receivable							$ 61,000		$ 58,000