Annual report pursuant to Section 13 and 15(d)

8. DERIVATIVES (Details - Recognized gains/losses)

v3.3.1.900
8. DERIVATIVES (Details - Recognized gains/losses) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]      
Realized Gains (Losses) $ (338) $ (1,144) $ (1,901)
Unrealized Gains (Losses) (204) 336 80
Commodity contracts [Member] | Non Designated Derivative Instruments [Member] | Cost of goods sold [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Realized Gains (Losses) (338) (1,144) (1,901)
Unrealized Gains (Losses) $ (204) $ 336 $ 80