| Share-Based Payment Arrangement [Text Block] |
|
(8)
|
Share-Based Compensation
|
| |
The share-based compensation expense is recorded in research and development, and selling, general and administrative expenses based on the employee's or non-employee’s respective function. No share-based compensation was capitalized during the periods presented. Share-based compensation expense for the three and six months ended June 30, 2026 and 2025 was recorded as follows (in thousands):
|
| |
|
Three months ended
|
|
|
Six months ended
|
|
| |
|
June 30,
|
|
|
June 30,
|
|
| |
|
2026
|
|
|
2025
|
|
|
2026
|
|
|
2025
|
|
|
Research and development
|
|
$ |
63 |
|
|
$ |
55 |
|
|
$ |
118 |
|
|
$ |
150 |
|
|
Selling, general and administrative
|
|
|
46 |
|
|
|
43 |
|
|
|
104 |
|
|
|
118 |
|
|
Total share-based compensation
|
|
$ |
109 |
|
|
$ |
98 |
|
|
$ |
222 |
|
|
$ |
268 |
|
| |
The following table summarizes the activity of stock options and related information:
|
| |
|
Number of shares
|
|
|
Weighted average exercise price
|
|
|
Weighted average remaining contractual term (years)
|
|
|
Aggregate intrinsic value
(in thousands)
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Outstanding, December 31, 2025
|
|
|
485,203 |
|
|
$ |
17.19 |
|
|
|
8.4 |
|
|
$ |
— |
|
|
Stock options granted
|
|
|
30,000 |
|
|
|
1.29 |
|
|
|
|
|
|
|
|
|
|
Stock options forfeited
|
|
|
(12,271 |
) |
|
|
11.24 |
|
|
|
|
|
|
|
|
|
|
Outstanding, June 30, 2026
|
|
|
502,932 |
|
|
$ |
16.38 |
|
|
|
8.1 |
|
|
$ |
— |
|
|
Exercisable, June 30, 2026
|
|
|
170,648 |
|
|
$ |
44.70 |
|
|
|
5.5 |
|
|
$ |
— |
|
| |
Unrecognized share-based compensation for employee and nonemployee options granted through June 30, 2026 is $434,000 to be recognized over a remaining weighted average service period of 2.3 years.
|
| |
The following table summarizes the activity of restricted stock units (RSUs) and related information:
|
| |
|
|
|
|
|
Weighted
|
|
| |
|
|
|
|
|
average
|
|
| |
|
|
|
|
|
grant date
|
|
| |
|
Number of
|
|
|
fair value
|
|
| |
|
shares
|
|
|
per share
|
|
|
Balance, December 31, 2025
|
|
|
— |
|
|
$ |
n/a |
|
|
RSUs granted
|
|
|
296,041 |
|
|
|
1.24 |
|
|
RSUs released
|
|
|
(8,621 |
) |
|
|
1.20 |
|
|
Balance, June 30, 2026
|
|
|
287,420 |
|
|
$ |
1.24 |
|
| |
RSUs vested and settled are converted into our common stock on a one-for-one basis. All of the 287,420 RSUs outstanding were fully vested on June 30, 2026, and relate to settlement of employee bonus, and were released on July 2, 2026, after withholding applicable income taxes.
|
|