Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVES (Details 1)

v3.8.0.1
DERIVATIVES (Details 1) - Non Designated Derivative Instruments [Member] - Commodity Contracts [Member] - Cost of goods sold [Member] - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]    
Realized Gains (Losses) $ (1,658) $ (2,344)
Unrealized Gains (Losses) $ 1,196 $ 2,560