v3.23.2
SHARE-BASED COMPENSATION - (Tables)
6 Months Ended
Jun. 30, 2023
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Grant Date Intrinsic Value [Table Text Block]

The following is a summary of stock option activity in the six months ended June 30, 2023:

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Weighted

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​

​

​

Average

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​

​

​

Exercise

​

​

Options Outstanding

​

Price Per Share

Outstanding, December 31, 2022

 

8,845,903

​

$

0.40

Granted

 

500,000

​

​

0.60

Exercised

 

(3,423,699)

​

​

0.27

Forfeited and expired

 

(455,654)

​

​

0.27

Outstanding, June 30, 2023

 

5,466,550

​

$

0.52

Exercisable, June 30, 2023

 

2,451,923

​

$

0.27

Schedule of Activity Related to Restricted Stock Units

The following is a summary of activity in RSUs in the six months ended June 30, 2023:

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Weighted Average

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​

​

​

Grant Date Fair

Restricted stock units

​

Shares

​

Value

Non-vested at December 31, 2022

 

11,332,591

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$

4.36

Granted

 

5,453,371

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​

0.65

Forfeited

 

(1,784,713)

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​

4.48

Vested

 

(3,812,238)

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​

4.54

Non-vested at June 30, 2023

 

11,189,011

​

$

2.49

Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs

The table below summarizes total stock-based compensation expenses in the three and six months ended June 30, 2023 and June 30, 2022:

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Three Months Ended June 30, 

(In thousands)

​

2023

​

2022

Research and development

​

$

2,375

​

$

2,209

Selling, general and administrative expenses

​

 

980

​

 

8,832

Total stock-based compensation expenses

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$

3,355

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$

11,041

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​

​

​

​

​

​

​

​

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Six Months Ended June 30, 

​

(In thousands)

    

2023

    

2022

​

Research and development

​

$

3,902

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$

4,598

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Selling, general and administrative expenses

​

 

1,156

​

 

17,924

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Total stock-based compensation expenses

​

$

5,058

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$

22,522

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Restricted Stock Units (RSUs)  
Schedule Of Share Based Payment Award Stock Options Valuation Assumptions

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Market-based

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​

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Performance

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Valuation Assumptions

​

RSUs

​

Stock price

​

$

0.60

​

Simulated trading days

​

 

1,260

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Annual volatility

​

 

140.5

%

Risk- free rate

​

 

3.63

%

Estimated time to expiration (years)

​

 

5.00

​

Stock Options  
Schedule Of Share Based Payment Award Stock Options Valuation Assumptions

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Time-based

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​

​

Stock Option

​

Valuation Assumptions

​

Grants

​

Strike price

​

$

0.60

​

Annual volatility

​

 

140.5

%

Risk- free rate

​

 

3.54

%

Expected term (years)

​

 

6.02

​