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Note 6 - Inventory
6 Months Ended
Jun. 30, 2018
Notes to Financial Statements  
Inventory Disclosure [Text Block]
6.
Inventory
 
Inventory consists of the following (in thousands):
 
   
June 30, 2018
   
December 31, 2017
 
Raw materials
  $
8,175
    $
2,754
 
Work in process
   
9,520
     
4,166
 
Finished goods
   
9,502
     
3,188
 
Total inventory
  $
27,197
    $
10,108
 
 
As of
June 30, 2018,
total inventory included
$8.5
million and
$18.7
million related to SUSTOL and CINVANTI, respectively. As of
December 31, 2017,
total inventory included
$7.1
million and
$3.0
million related to SUSTOL and CINVANTI, respectively.
 
Prior to FDA approval,
$1.4
million of costs to manufacture CINVANTI were recorded to research and development expense in prior periods. By
March 31, 2018,
all CINVANTI units that were manufactured prior to FDA approval had been sold. We began capitalizing raw materials, labor and overhead related to the manufacturing of CINVANTI following FDA approval.