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Share-Based Payment Awards (Tables)
9 Months Ended
Sep. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Stock Option Activity

A summary of stock option activity is as follows:

 

    Shares    

Weighted Average Exercise

Price

    Weighted Average Remaining Contractual Term    

Aggregate Intrinsic

Value

 
Options outstanding as of December 31, 2017     1,090,000     $ 1.24       9.7     $ 151  
Issued     135,000       3.00                  
Exercised                            
Forfeited/Cancelled     (20,000 )     0.21                  
Options outstanding as of September 30, 2018     1,205,000     $ 1.45       9.0     $ 2,010  
Options exercisable at September 30, 2018     237,500     $ 0.84       8.7     $ 542  
Options vested and expected to vest at September 30, 2018     1,155,000     $ 1.45       9.0     $ 1,923  

Schedule of Assumptions Used to Calculate Fair Value of Options Granted

The assumptions used to calculate the fair value of options granted during the nine months ended September 30, 2018 under the BSM were as follows:

 

    September 30, 2018  
Expected dividends     %
Expected volatility     85 %
Risk-free interest rate     2.8-2.9 %
Expected term     6.3 years  
Weighted average fair value   $ 2.21  

Summary of Activity for Restricted Stock Awards

Restricted Stock Awards   Number of shares  
Unvested as of December 31, 2017     2,500,000  
Issued     218,980  
Vested     (2,164,235 )
Forfeited/Cancelled      
Unvested as of September 30, 2018     554,745  

Summary of Activity for Restricted Stock Units

Restricted Stock Units   Number of shares  
Unvested as of December 31, 2017     50,000  
Issued      
Vested     (50,000 )
Forfeited/Cancelled      
Unvested as of September 30, 2018