Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v3.21.1
Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Summarizes Stock Option Activities

The following table summarizes stock option activities for the three months ended March 31, 2021:

    

    

    

Weighted Average

Remaining

Weighted Average

Contractual Life (in

Stock Options

Exercise Price

years)

Outstanding at December 31, 2020

 

1,141,675

5.73

 

6.31

Outstanding at March 31, 2021

 

1,141,675

 

5.73

 

6.06

Options vested and exercisable at March 31, 2021

 

820,579

$

5.73

 

6.06

Schedule of Stock-Based Compensation Expense

The following table summarizes stock-based compensation expense for the three months ended March 31, 2021 and 2020 (in thousands).

For the three months ended March 31, 

    

2021

    

2020

    

General and administrative

$

324

$

352

Research and development

 

672

 

453

Total stock-based compensation expense

$

996

$

805

Schedule of warrant activity

A summary of warrant activities for the three months ended March 31, 2021 is presented below:

    

    

    

Weighted Average

Remaining

Weighted Average

Contractual Life (in

Warrants

Exercise Price

years)

Outstanding as of December 31, 2020

 

5,402,670

$

8.21

 

1.39

Cashless exercised

 

(138)

 

 

Outstanding as of March 31, 2021

 

5,402,532

$

8.21

 

1.14

Restricted Stock Awards [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedules of Restricted Stock and Restricted Stock Unit Activity

The following table summarizes restricted stock award activities for the three months ended March 31, 2021:

    

    

Weighted Average

Grant Date Fair

Number of Shares

Value

Nonvested at December 31, 2020

 

302,114

$

4.93

Nonvested at March 31, 2021

 

302,114

$

4.93

Restricted Stock Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedules of Restricted Stock and Restricted Stock Unit Activity

Certain employees and consultants have been awarded restricted stock units with time-based vesting. The following table summarizes restricted stock units’ activities for the three months ended March 31, 2021:

    

    

Weighted Average

Grant Date Fair

Number of Units

Value

Nonvested at December 31, 2020

 

1,468,559

$

3.87

Granted

 

589,250

 

3.46

Forfeited

(45,750)

4.15

Vested

 

(168,188)

 

4.96

Nonvested at March 31, 2021

 

1,843,871

$

3.63