Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.20.1
Stock-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2020
Equity [Abstract]  
Schedule of warrants

    Shares Underlying Warrants     Weighted Average Exercise Price     Weighted Average Remaining Contractual Life (years)     Aggregate Intrinsic Value  
Outstanding and exercisable at December 31, 2019     2,745,801     $ 5.24       2.58     $     -  
Granted     120,000       2.83                  
Forfeited/cancelled     (25,000 )     5.79                  
Outstanding at March 31, 2020     2,840,801     $ 5.12       2.37     $ -  

Schedule of stock option activity

    Shares Underlying Options     Weighted Average Exercise Price     Weighted Average Remaining Contractual Life (years)     Aggregate Intrinsic Value  
Outstanding at December 31, 2019     3,516,532     $ 4.22       7.91     $      -  
Granted     1,091,166       2.16                  
Exercised     -       -               -  
Forfeited/cancelled     (181,751 )     4.10                  
Outstanding at March 31, 2020     4,425,947     $ 3.72       8.19     $ -  

Schedule of option pricing model using weighted average assumptions

    Three Months Ended
March 31,
 
    2020     2019  
Expected term, in years     5.8       5.8  
Expected volatility     79.59 %     70.57 %
Risk-free interest rate     1.49 %     2.56 %
Dividend yield     -       -  
Grant date fair value   $ 0.95     $ 2.73  

Schedule of restricted stock unit awards activity

    Number of Shares     Weighted Average Grant Date Fair Value  
Nonvested at December 31, 2019     185,589     $ 4.71  
Granted     260,154       2.16  
Vested     (15,070 )     4.72  
Nonvested at March 31, 2020     430,673     $ 3.17  

Schedule of stock-based compensation

    Three Months ended
March 31,
 
    2020     2019  
Research and development   $ 223     $ 125  
Sales and marketing     128       63  
General and administrative     453       753  
Total(1)(2)   $ 804     $ 941