v3.26.1
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2026
Stock-Based Compensation  
Schedule of stock options activity

Number of Options

Weighted-Average Exercise Price

Balance at December 31, 2025

  ​ ​ ​

94,338,469

  ​ ​ ​

$

0.2904

Stock options granted

 

2,550,000

0.1315

Stock options forfeited

 

(2,670,102)

(0.1466)

Vested stock options expired

 

(7,847,502)

(0.4689)

Balance at June 30, 2026

 

86,370,865

$

0.2739

Vested at June 30, 2026

 

64,344,546

$

0.3247

Number of Options

Weighted-Average Exercise Price

Balance at December 31, 2024

  ​ ​ ​

89,051,943

  ​ ​ ​

$

0.3232

Stock options granted

 

16,050,000

0.0798

Stock options forfeited

 

(6,490,000)

(0.1554)

Vested stock options expired

 

(3,979,307)

(0.3313)

Balance at June 30, 2025

 

94,632,636

$

0.2931

Vested at June 30, 2025

 

56,412,773

$

0.3603

Schedule of the continuity of SARs

Number of SARs

Weighted-Average Exercise Price

Balance at December 31, 2025

26,890,832

$

0.12

Balance at June 30, 2026

26,890,832

$

0.12

Vested at June 30, 2026

13,521,379

0.13

Number of SARs

Weighted-Average Exercise Price

Balance at December 31, 2024

13,521,379

$

0.13

Balance at June 30, 2025

13,521,379

$

0.13

Vested at June 30, 2025

Stock options  
Stock-Based Compensation  
Share-based payment arrangement, cost by plan

Three Months Ended June 30, 

Six Months Ended June 30, 

2026

  ​ ​ ​

2025

  ​ ​ ​

2026

  ​ ​ ​

2025

Stock-based compensation expense

$

121

$

266

$

260

$

811