| Segment Reporting [Table Text Block] |
| |
|
Three Months Ended June
30,
|
|
|
Six Months Ended June 30,
|
|
| |
|
2026
|
|
|
2025
|
|
|
2026
|
|
|
2025
|
|
|
Grant revenue
|
|
$ |
— |
|
|
$ |
1,757,724 |
|
|
$ |
— |
|
|
$ |
3,675,215 |
|
|
Research and development expenses:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dementia with Lewy bodies
|
|
|
422,614 |
|
|
|
1,815,817 |
|
|
|
1,169,359 |
|
|
|
3,973,648 |
|
|
Frontotemporal disorders (incl. nfvPPA)
|
|
|
495,888 |
|
|
|
411,029 |
|
|
|
963,851 |
|
|
|
557,302 |
|
|
Recovery after stroke
|
|
|
591,586 |
|
|
|
303,161 |
|
|
|
900,538 |
|
|
|
555,703 |
|
|
Other clinical* and nonclinical
|
|
|
437,749 |
|
|
|
532,532 |
|
|
|
1,469,667 |
|
|
|
1,207,923 |
|
|
Personnel costs, excluding stock-based compensation
|
|
|
872,925 |
|
|
|
814,878 |
|
|
|
1,851,838 |
|
|
|
1,588,602 |
|
|
Stock-based compensation
|
|
|
137,175 |
|
|
|
121,159 |
|
|
|
263,885 |
|
|
|
244,861 |
|
|
Other research and development expenses, including CMC**
|
|
|
1,363,835 |
|
|
|
1,110,049 |
|
|
|
2,838,053 |
|
|
|
1,818,384 |
|
|
Total research and development expenses
|
|
|
4,321,772 |
|
|
|
5,108,625 |
|
|
|
9,457,191 |
|
|
|
9,946,423 |
|
|
General and administrative expenses:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Personnel costs, excluding stock-based compensation
|
|
|
1,130,104 |
|
|
|
1,724,775 |
|
|
|
2,446,534 |
|
|
|
2,835,869 |
|
|
Stock-based compensation
|
|
|
225,100 |
|
|
|
375,856 |
|
|
|
447,586 |
|
|
|
613,321 |
|
|
Professional fees
|
|
|
659,065 |
|
|
|
804,391 |
|
|
|
1,761,866 |
|
|
|
1,533,961 |
|
|
Insurance, taxes and similar fees
|
|
|
220,840 |
|
|
|
248,715 |
|
|
|
435,604 |
|
|
|
468,301 |
|
|
Other general and administrative expenses, including IT, facilities, supplies and similar costs
|
|
|
121,670 |
|
|
|
111,637 |
|
|
|
240,294 |
|
|
|
196,499 |
|
|
Total general and administrative expenses
|
|
|
2,356,779 |
|
|
|
3,265,374 |
|
|
|
5,331,884 |
|
|
|
5,647,951 |
|
|
Other income (expense)
|
|
|
1,998 |
|
|
|
(10,256 |
) |
|
|
977 |
|
|
|
(10,391 |
) |
|
Interest income
|
|
|
104,897 |
|
|
|
368,127 |
|
|
|
252,284 |
|
|
|
777,112 |
|
|
Net loss
|
|
$ |
(6,571,656 |
) |
|
$ |
(6,258,404 |
) |
|
$ |
(14,535,814 |
) |
|
$ |
(11,152,438 |
) |
|