XML 30 R19.htm IDEA: XBRL DOCUMENT v3.20.2
INVENTORIES. (Tables)
6 Months Ended
Jun. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of inventories
   June 30,
2020
   December 31, 2019 
Finished goods  $28,810   $38,194 
Work in progress   3,018    7,426 
Raw materials   6,655    7,890 
Low-carbon and RIN credits   6,443    5,690 
Other   1,400    1,400 
Total  $46,326   $60,600