Quarterly report pursuant to Section 13 or 15(d)

PLANT, PIPELINE AND EQUIPMENT (Details)

v3.20.2
PLANT, PIPELINE AND EQUIPMENT (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Property, Plant and Equipment [Line Items]          
Total plant, pipeline and equipment $ 284,980   $ 284,980   $ 274,806
Less accumulated depreciation (97,082)   (97,082)   (85,887)
Net plant, pipeline and equipment 187,898   187,898   188,919
Amortization relating to the platinum catalyst 200 $ 200 700 $ 700  
Platinum catalyst metal          
Property, Plant and Equipment [Line Items]          
Total plant, pipeline and equipment 1,580   1,580   1,580
Catalyst          
Property, Plant and Equipment [Line Items]          
Total plant, pipeline and equipment 4,328   4,328   4,095
Land          
Property, Plant and Equipment [Line Items]          
Total plant, pipeline and equipment 5,428   5,428   5,428
Plant, pipeline and equipment          
Property, Plant and Equipment [Line Items]          
Total plant, pipeline and equipment 266,128   266,128   258,651
Construction in progress          
Property, Plant and Equipment [Line Items]          
Total plant, pipeline and equipment $ 7,516   $ 7,516   $ 5,052