Annual report pursuant to Section 13 and 15(d)

Equity (Tables)

v3.10.0.1
Equity (Tables)
12 Months Ended
Dec. 31, 2018
Equity [Abstract]  
Summary of Option Activities
Stock option activity for the years ended December 31, 2018 and 2017 is as follows:

Number of
Shares
Weighted Average Grant Date Fair Value
Weighted
Average
Exercise
Price
Weighted
Average
Remaining
Contractual
Term
(in years)
Aggregate
Intrinsic
Value
Outstanding, December 31, 2017 1,345,000  $ 1.93  $ 3.50  9.07 $ 83,000 
Granted  1,479,000  $ 1.32  $ 1.79 
Granted - Exercised (25,000) $ 0.13  $ 0.20 
Canceled  (5,000) $ 1.75  $ 2.49 
Outstanding, December 31, 2018  2,794,000  $ 1.78  $ 2.61  9.43 $ 21,200 
Exercisable, December 31, 2018 512,500  $ 2.61  $ 3.51  8.00 $ 21,000 
Schedule of Assumptions Used
The fair value of the option grants has been estimated, with the following weighted-average assumptions:

Year Ended December 31,
2018 2017
Risk-free interest rate 0.95  % to    2.24%    1.83  % to    1.95%   
Volatility 70.18%    to    89.11%    80%   
Expected life (years) 5.0 to 6.25 5.0 to 6.25
Expected dividend yield —%    —%   
Components of Share-Based Compensation
Stock-based compensation expense is as follows (in thousands):

Year Ended December 31,
2018 2017
General and administrative $ 976  $ 684 
Research and development 164  23 
Total $ 1,140  $ 707