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Stockholders' Equity (Tables)
3 Months Ended
Mar. 31, 2021
Equity [Abstract]  
Schedule of Fair Value Assumptions for Options Granted

The fair value for options granted in the first quarter of 2021 is estimated at the date of grant using a Black-Scholes-Merton options pricing model with the following underlying assumptions:

 

Price at valuation   $ 1.04  
Exercise price   $ 1.04  
Risk free interest     0.49 %
Expected term (in years)     5  
Volatility     81.5 %
Schedule of Stock Based Expenses Recognized for Services from Employees and Non-Employees

The total stock-based expense recognized in the financial statements for services received from employees and non-employees is shown in the following table.

 

   

Three Months Ended

March 31,

 
    2021     2020  
             
Research and development     5       -  
Selling and marketing     21       11  
General and administrative     83       60  
Total   $ 109     $ 71  
Schedule of Fair Value Assumptions for Warrants

In estimating the warrants’ fair value, the Company used the following assumptions:

 

Risk free interest     0.05 – 0.35 %
Dividend yield     0 %
Volatility     82.7% - 211 %
Contractual term (in years)     0.79 – 2.67