Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVES (Details 1)

v3.10.0.1
DERIVATIVES (Details 1) - Non Designated Derivative Instruments [Member] - Commodity Contracts [Member] - Cost of goods sold [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]        
Realized Gains (Losses) $ 916 $ (1,576) $ (1,241) $ (4,495)
Unrealized Gains (Losses) $ (1,907) $ 1,093 $ (3,121) $ 3,659