Annual report pursuant to Section 13 and 15(d)

PROPERTY AND EQUIPMENT. (Tables)

v3.20.1
PROPERTY AND EQUIPMENT. (Tables)
12 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
Schedule of property and equipment
    December 31,  
    2019     2018  
Facilities and plant equipment   $ 495,513     $ 621,909  
Land     7,219       8,970  
Other equipment, vehicles and furniture     11,229       11,812  
Construction in progress     15,793       30,312  
      529,754       673,003  
Accumulated depreciation     (197,228 )     (190,346 )
    $ 332,526     $ 482,657