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 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]        
Realized Gains (Losses) $ (499) $ (574) $ (2,157) $ (2,918)
Unrealized Gains (Losses) $ (2,410) $ 6 $ (1,213) $ 2,566