v3.26.1
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2026
Stock-Based Compensation  
Schedule of assumptions used for estimating fair value

  ​ ​ ​

2026

  ​ ​ ​

2025

 

Exercise price

$

0.24

$

1.41

Expected dividends

 

%

 

%

Expected volatility

 

113.4

%

 

107.4

%

Risk free interest rate

 

3.65

%

 

3.74

%

Expected life of option (years)

 

4.26

 

4.23

Summary of stock option activity

  ​ ​ ​

  ​ ​ ​

Weighted

  ​ ​ ​

Weighted Average

  ​ ​ ​

Aggregate

Average Exercise

Remaining

Intrinsic

  ​ ​ ​

Options

  ​ ​ ​

Price

  ​ ​ ​

Contractual Life

  ​ ​ ​

Value

Balance - December 31, 2024

 

175,034

$

36.88

 

6.72 years

$

Granted

 

951,500

1.41

 

 

Expired

 

(1,777)

1,268

 

 

Forfeited

 

(10,329)

14.72

 

 

Balance - December 31, 2025

1,114,428

4.84

6.12 years

Granted

1,477,500

0.24

Expired

Forfeited

(15,876)

0.64

Balance - June 30, 2026 -outstanding

 

2,576,052

$

2.23

 

6.12 years

$

Balance - June 30, 2026 -exercisable

 

884,758

$

5.31

 

4.92 years

$

Grant date fair value of options granted – six months ended June 30, 2026

$

276,505

 

  ​

 

  ​

Weighted average grant date fair value - six months ended June 30, 2026

$

0.19

 

  ​

 

  ​

Grant date fair value of options granted – year ended December 31, 2025

$

1,011,295

 

  ​

 

  ​

Weighted average grant date fair value – year ended December 31, 2025

$

1.06

 

  ​

 

  ​