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Note 5 - Inventories
12 Months Ended
Dec. 31, 2019
Notes to Financial Statements  
Inventory Disclosure [Text Block]
5
. Inventories
 
The following table sets forth the components of the Company’s inventory balances (in thousands):
 
   
December 31,
 
   
201
9
   
201
8
 
Raw materials
               
Corn
  $
267
    $
29
 
Enzymes and other inputs
   
184
     
204
 
Finished goods
               
Jet Fuels, Isooctane and Isooctene    
571
     
394
 
Isobutanol    
135
     
549
 
Ethanol
   
93
     
182
 
Distillers grains
   
54
     
54
 
Work in process
               
Agri-Energy    
254
     
214
 
Gevo
   
122
     
89
 
Spare parts
   
1,521
     
1,451
 
                 
Total inventories
  $
3,201
    $
3,166
 
 
Work in process inventory includes unfinished jet fuel, isooctane and isooctene inventory.