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1. Nature of Activities and Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2018
Proceeds from sale of land  
Disaggregation of revenue

The below table shows our sales in North America by product category:

 

North America (in thousands)                    
   

 For the three months

ended June 30,

   

 For the six months

ended June 30,

 
    2018     2017     2018     2017  
Ethanol sales   $ 30,129     $ 28,130     $ 58,341     $ 51,675  
Wet distiller's grains sales     8,499       6,457       16,327       12,038  
Other sales     1,000       878       2,136       1,705  
                                 
    $ 39,628     $ 35,465     $ 76,804     $ 65,418  

 

The below table shows our sales in India by product category:

 

India (in thousands)                        
   

 For the three months

ended June 30,

   

 For the six months

ended June 30,

 
    2018     2017     2018     2017  
Biodiesel sales   $ 3,841     $ 4,100     $ 8,342     $ 4,933  
Refined Glycerin sales     1,559       1,199       2,900       1,987  
    $ 5,400     $ 5,299     $ 11,242     $ 6,920  
Schedule of dilutive securities
    As of  
    June 30, 2018     June 30, 2017  
             
Series B preferred (post split basis)     132       133  
Common stock options and warrants     3,206       2,589  
Debt with conversion feature at $30 per share of common stock     1,222       1,188  
Total number of potentially dilutive shares excluded from the diluted net loss per share calculation     4,560       3,910