| Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] |
| Expiry Date |
|
Exercise Price |
|
|
Warrants
Outstanding |
|
| September 6, 2020 |
|
US$ |
1.01 |
|
|
|
925,925 |
|
| October 11, 2020 |
|
US$ |
1.35 |
|
|
|
510,204 |
|
| October 11, 2020 |
|
US$ |
1.50 |
|
|
|
10,204 |
|
| October 19, 2020 |
|
US$ |
0.24 |
|
|
|
1,315,789 |
|
| October 29, 2020 |
|
US$ |
0.18 |
|
|
|
555,555 |
|
| November 7, 2020 |
|
US$ |
0.61 |
|
|
|
20,408 |
|
| November 7, 2020 |
|
US$ |
0.66 |
|
|
|
300,000 |
|
| November 8, 2020 |
|
US$ |
1.01 |
|
|
|
918,355 |
|
| December 7, 2020 |
|
US$ |
0.67 |
|
|
|
185,185 |
|
| December 7, 2020 |
|
US$ |
1.50 |
|
|
|
3,188,735 |
|
| December 17, 2020 |
|
US$ |
0.26 |
|
|
|
952,380 |
|
| January 10, 2021 |
|
US$ |
1.50 |
|
|
|
1,437,557 |
|
| January 11, 2021 |
|
US$ |
1.50 |
|
|
|
307,692 |
|
| January 14, 2021 |
|
US$ |
0.20 |
|
|
|
1,176,470 |
|
| January 16, 2021 |
|
US$ |
0.14 |
|
|
|
357,142 |
|
| Mar 29, 2021 |
|
US$ |
0.465 |
|
|
|
1,481,481 |
|
| April 8, 2021 |
|
CAD$ |
4.73 |
|
|
|
57,756 |
|
| May 22, 2021 |
|
US$ |
0.91 |
|
|
|
6,000,000 |
|
| May 22, 2021 |
|
US$ |
0.30 |
|
|
|
1,133,333 |
|
| May 22, 2021 |
|
US$ |
1.50 |
|
|
|
65,759 |
|
| July 5, 2021 |
|
US$ |
0.25 |
|
|
|
52,631 |
|
| July 5, 2021 |
|
US$ |
0.28 |
|
|
|
131,578 |
|
| July 5, 2021 |
|
US$ |
0.35 |
|
|
|
3,917,771 |
|
| July 21, 2021 |
|
US$ |
0.0412 |
|
|
|
2,666,666 |
|
| August 7, 2021 |
|
US$ |
0.0412 |
|
|
|
3,033,980 |
|
| August 16, 2021 |
|
CAD$ |
0.29 |
|
|
|
120,000 |
|
| August 16, 2021 |
|
US$ |
0.18 |
|
|
|
4,210,785 |
|
| September 20, 2021 |
|
US$ |
0.23 |
|
|
|
1,111,111 |
|
| September 30, 2021 |
|
US$ |
0.23 |
|
|
|
2,777,777 |
|
| November 26, 2023 |
|
US$ |
0.17 |
|
|
|
1,683,230 |
|
| December 4, 2023 |
|
US$ |
0.17 |
|
|
|
2,286,720 |
|
| March 30, 2024 |
|
US$ |
0.08 |
|
|
|
392,500 |
|
| March 30, 2024 |
|
US$ |
0.15 |
|
|
|
4,906,250 |
|
| January 25, 2025 |
|
US$ |
0.14 |
|
|
|
151,785 |
|
| |
|
|
|
|
|
|
48,342,714 |
|
| Weighted average remaining contractual life |
|
|
|
|
|
|
1.21 years |
|
| Weighted average exercise price |
|
USD$ |
0.43 |
|
|
|
|
|
|