Quarterly report pursuant to Section 13 or 15(d)

Share-based compensation (Tables)

v3.22.2
Share-based compensation (Tables)
6 Months Ended
Jun. 30, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Warrants

A summary of the Company’s warrants to purchase common stock activity is as follows:

 

   

Shares

Underlying

Warrants

   

Weighted

Average

Exercise Price

   

Weighted

Average

Remaining

Contractual

Life (years)

   

Aggregate

Intrinsic Value

 
Outstanding and exercisable at December 31, 2021     420,247     $ 54.76       3.40     $       -  
Granted     6,000       10.00                  
Cancelled    

(6,000

)    

56.60

                 
Forfeited     (25,670 )     103.51                  
Outstanding at June 30, 2022     394,577     $ 50.87       3.15     $ -  
Schedule of Stock Option Activity

A summary of the Company’s stock option activity is as follows:

 

   

Shares

Underlying

Options

   

Weighted

Average

Exercise Price

   

Weighted

Average

Remaining

Contractual

Life (years)

   

Aggregate

Intrinsic Value

 
Outstanding at December 31, 2021     307,592     $ 54.10       7.45     $      -  
Granted     98,747       8.98                  
Expired     (75 )     36.77                  
Forfeited     (2,353 )     12.17                  
Outstanding at June 30, 2022     403,911     $ 43.34       7.58     $ -  
Schedule of Stock Option Pricing Model Using Weighted Average Assumptions

The Company estimated the fair value of each stock option award using the Black-Scholes option pricing model based on the following weighted average assumptions:

 

   

Six Months Ended

June 30,

 
    2022     2021  
Expected term, in years     5.76       5.75  
Expected volatility     99.31 %     106.76 %
Risk-free interest rate     2.04 %     0.73 %
Dividend yield     -       -  
Schedule of Restricted Stock Unit Awards Activity

A summary of the Company’s restricted stock unit awards activity is as follows:

 

    Number of Shares    

Weighted Average

Grant Date

Fair Value

 
Nonvested at December 31, 2021     25,120     $ 44.77  
Granted     18,250       9.08  
Vested     (14,757 )     40.43  
Nonvested at June 30, 2022     28,613     $ 24.25  
Schedule of Stock-based Compensation

The following table sets forth total non-cash share-based compensation for the issuance of common stock, options to purchase common stock, warrants to purchase common stock, and restricted stock unit awards by operating statement classification for the six months ended June 30, 2022 and 2021:

 

    2022     2021     2022     2021  
   

Three Months ended

June 30,

   

Six Months ended

June 30,

 
    2022     2021     2022     2021  
Research and development   $ 100     $ 169     $ 197     $ 303  
Sales and marketing     65       105       123       222  
General and administrative     296       736       662       1,404  
Total   $ 461     $ 1,010     $ 982     $ 1,929