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Share-Based Payments (Tables)
 12 Months Ended
Jun. 30, 2024
Notes and other explanatory information [abstract]  
Schedule of Options Granted Under OIP Set out below are summaries of all listed and unlisted options, including those issued under OIP:
   2024   2023   2022 
   Average
exercise
price per
share option
(A$)		   Number of
options		   Average
exercise
price per
share option
(A$)		   Number of options   Average
exercise
price per
share option
(A$)		   Number of
options		 
                         
As at 1 July   0.27    12,879,720    0.37    19,873,877    0.31    45,309,478 
Granted during the year   0.19    2,000,000    0.12    1,430,000    0.25    500,000 
Exercised during the year   0.12    (200,000)   -    -    -    - 
Forfeited/lapsed during the year   0.18    (173,600)   0.48    (8,424,157)   0.27    (25,935,601)
As at 30 June   0.26    14,506,120    0.27    12,879,720    0.37    19,873,877 
Vested and exercisable at 30 June   0.27    13,346,386    0.27    12,610,802    0.37    19,538,877 
Schedule of Share Options Outstanding Share options outstanding at the end of the year have the following expiry date and exercise prices:
      Exercise
price		   Share
options		   Share
options		   Share
options		 
Grant date  Expiry
date		  (A$ unless
stated otherwise)		   30 June
2024		   30 June
2023		   30 June
2022		 
2018-03-15  2023-03-15   0.468    -    -    7,897,647 
2017-06-09 (warrants)  2022-06-08  USD0.3125    -    -    - 
2018-03-15  2023-03-15   0.585    -    -    526,510 
2019-05-23 (warrants)  2024-05-23  USD0.125    -    173,600    173,600 
2019-07-16 (warrants)  2024-07-16  USD0.125    116,120    116,120    116,120 
2018-07-13  2021-07-01   0.500    -    -    - 
2019-11-06  2024-02-10   0.500    -    -    - 
2020-10-29  2024-04-14   0.12    7,900,000    8,100,000    8,100,000 
2020-07-24 (warrants)  2025-07-21  USD0.5859    2,560,000    2,560,000    2,560,000 
2021-10-26  2025-10-26   0.25    500,000    500,000    500,000 
2022-06-27  2026-06-27   0.12    1,430,000    1,430,000    - 
2023-11-21  2027-11-21   0.25    1,000,000    -    - 
2024-06-19  2028-06-19   0.13    1,000,000    -    - 
Total           14,506,120    12,879,720    19,873,877 
                        
Weighted average remaining contractual life of options outstanding at end of period        2.01    1.35    1.54 
Schedule of Options Granted Under OIP The model inputs for options granted under OIP during the year ended June 30, 2024 included:
   Share price               Fair value
at grant		 
      Exercise       at grant           Risk- free   date per 
      price   No. of   date   Expected   Dividend   interest   option 
Grant date  Expiry date  (A$)   options   (A$)   volatility   yield   rate   (A$) 
                                
2023-11-21  2027-11-21   0.25    1,000,000    0.08    119.21%   0.00%   4.09%   0.0511 
2024-06-19  2028-06-19   0.13    1,000,000*   0.09    90.42%   0.00%   3.97%   0.0524 
            2,000,000                          
*1,000,000 options granted to Dr. Jeannette Joughin are subject to shareholder approval at the upcoming AGM on 26 November 2024.
The model inputs for options granted under OIP during the year ended June 30, 2022 included:
   Share price               Fair value
at grant		 
      Exercise       at grant           Risk- free   date per 
      price   No. of   date   Expected   Dividend   interest   option 
Grant date  Expiry date  (A$)   options   (A$)   volatility   yield   rate   (A$) 
                                
2021-10-26   2025-10-26   0.25    500,000    0.12    131.70%   0.00%   0.69%   0.0886 
2022-06-27   2026-06-27   0.12    1,430,000*   0.07    128.10%   0.00%   3.31%   0.0530 
2022-03-15   2026-06-27   0.12    1,000,000*   0.07    128.10%   0.00%   3.31%   0.0530 
            2,930,000                          
* 1,430,000 options granted to Mr. Steven Lydeamore on 27 June 2022 and subsequently issued after the reporting period, on 1 July 2022.
   
  1,000,000 options granted to Mr. Paul Brennan on 15 March 2022.
Schedule of Total Expenses Arising from Share-Based Payment Transactions Total expenses arising from share-based payment transactions recognized during the period were as follows:
   2024
A$		   2023
A$		   2022
A$		 
Options issued under OIP   3,299    104,753    54,930 
Shares issued under OIP   -    -    39,960 
Performance rights issued under OIP1   -    122,201    - 
    3,299    226,954    94,890 
1It was agreed that performance bonus for selected employees for the year ended 30 June 2023 would be paid in performance rights rather than cash. Performance rights to be issued to employees are long-term incentives under OIP.