v3.26.1
STOCK BASED COMPENSATION (Tables)
6 Months Ended
Jun. 30, 2026
STOCK BASED COMPENSATION  
Summary of stock-based activities under the Amended & 2025 Plans

  ​ ​ ​

  ​ ​ ​

Weighted

  ​ ​ ​

Weighted

ADS

Average

Average

Underlying

Exercise

Contractual

Options

Price

Terms

Outstanding at December 31, 2025

 

215,957

$

42.83

 

9.30

Granted

 

809,661

7.37

 

Outstanding at June 30, 2026

 

1,025,618

$

14.84

 

9.43

Exercisable options at June 30, 2026

 

42,069

$

148.08

 

8.62

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

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June 30, 

 

2026

 

Expected volatility

 

118.7

%

Risk-free interest rate

 

4.0

%

Expected dividend yield

 

0.0

%

Expected life of options in years

 

6.4

Exercise Price

$

7.37

Fair value of common stock

$

7.37

Estimate fair value of option

$

6.51