Note 8 - Restricted Cash - Restricted Cash (Details)		Sep. 30, 2020 AUD ($)	Dec. 31, 2019 AUD ($)	Sep. 18, 2019 USD ($)
Restricted cash - current assets		$ 2,009,808	$ 2,055,473
Collateral for facilities (c) - non-current assets		3,334,712	4,907,904
Restricted Cash, Total		5,344,520	6,963,377
Collateral for Facilities [Member]
Restricted cash - current assets	[1]	0	16,404
Collateral for facilities (c) - non-current assets	[2]	320,000	320,000
Performance Guarantee [Member]
Restricted cash - current assets	[3]	2,009,808	2,039,069
Collateral for facilities (c) - non-current assets	[3]	$ 3,014,712	$ 4,587,904
Restricted Cash, Total				$ 5,000,000

[1] Represents bank guarantee of CDN$15,000 as security deposit on HRL's credit card. This facility is no longer required

[2] Represents bank guarantee of A$250,000 for commercial lease of UBS' premises and security deposit on Company's credit cards of A$70,000

[3] Performance guarantee represents letter of credit issued in favour of Siemens pursuant to the 2019 Siemens Agreements. The performance guarantee was initially issued for US$5,000,000 and the same reduces in equal quarterly amounts over the 42 months with effect from September 18, 2019