v3.26.1
STOCK BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2025
STOCK BASED COMPENSATION  
Summary of stock-based activities under the Amended & 2025 Plans

​

​

​

​

​

​

​

​

​

​

  ​ ​ ​

​

  ​ ​ ​

Weighted

  ​ ​ ​

Weighted

​

​

​

​

Average

​

Average

​

​

ADS Underlying

​

Exercise

​

Contractual

​

​

Options

​

Price

​

Terms

Outstanding at December 31, 2023

 

7,946

​

$

886.90

 

9.68

Granted

​

47,595

​

​

27.30

​

​

Outstanding at December 31, 2024

​

55,541

​

$

150.27

​

9.76

Granted

 

171,313

​

​

9.99

 

​

Canceled

 

(10,897)

​

​

74.19

 

​

Outstanding at December 31, 2025

 

215,957

​

$

42.83

 

9.30

​

​

​

​

​

​

​

​

Exercisable options at December 31, 2025

 

10,774

​

$

485.14

 

8.29

Summary of weighted average assumptions of stock options granted valued using the Black-Scholes option-pricing model

​

​

​

​

​

​

​

​

​

​

  ​ ​ ​

December 31, 

​

December 31, 

 

​

​

2025

  ​

2024

 

Expected volatility

 

​

108.8

%

​

106.6

%

Risk-free interest rate

 

​

4.4

%

​

3.9

%

Expected dividend yield

 

​

0.0

%

​

0.0

%

Expected life of options in years

 

​

6.4

​

​

6.4

​

Exercise Price

​

$

9.99

​

$

27.30

​

Fair value of stock

​

$

9.66

​

$

27.30

​

Estimate fair value of option

​

$

8.22

​

$

23.10

​