| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
| |
|
Three Months Ended
September 30,
|
|
|
Nine Months Ended
September 30,
|
|
| |
|
2025
|
|
|
2024
|
|
|
2025
|
|
|
2024
|
|
|
Operating expenses, excluding share-based compensation
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Research and development
|
|
$ |
6,066 |
|
|
$ |
4,835 |
|
|
$ |
17,122 |
|
|
$ |
12,137 |
|
|
General and administrative
|
|
|
1,951 |
|
|
|
1,483 |
|
|
|
5,408 |
|
|
|
4,629 |
|
|
Total operating expenses, excluding share-based compensation
|
|
|
8,017 |
|
|
|
6,318 |
|
|
|
22,530 |
|
|
|
16,766 |
|
|
Share-based compensation
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Research and development
|
|
|
370 |
|
|
|
147 |
|
|
|
792 |
|
|
|
449 |
|
|
General and administrative
|
|
|
646 |
|
|
|
418 |
|
|
|
1,862 |
|
|
|
1,047 |
|
|
Total share-based compensation
|
|
|
1,016 |
|
|
|
565 |
|
|
|
2,654 |
|
|
|
1,496 |
|
|
Operating loss
|
|
|
(9,033 |
) |
|
|
(6,883 |
) |
|
|
(25,184 |
) |
|
|
(18,262 |
) |
|
Interest income
|
|
|
440 |
|
|
|
618 |
|
|
|
1,197 |
|
|
|
1,758 |
|
|
Other income (expense), net
|
|
|
(21 |
) |
|
|
(2 |
) |
|
|
(21 |
) |
|
|
(19 |
) |
|
Income tax expense
|
|
|
(6 |
) |
|
|
(7 |
) |
|
|
(18 |
) |
|
|
(21 |
) |
|
Segment and consolidated net loss
|
|
$ |
(8,620 |
) |
|
$ |
(6,274 |
) |
|
$ |
(24,026 |
) |
|
$ |
(16,544 |
) |
|