Annual report pursuant to Section 13 and 15(d)

Note 15 - Income Taxes (Details Textual)

v3.20.4
Note 15 - Income Taxes (Details Textual)
 12 Months Ended
Dec. 31, 2020
State and Local Jurisdiction [Member]  
Open Tax Year 2012 2013 2014 2015 2016 2017 2018 2019 2020
Foreign Tax Authority [Member] | Australian Taxation Office [Member]  
Open Tax Year 2016 2017 2018 2019 2020