COMMODITY DERIVATIVE INSTRUMENTS (Details 2) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Balance, beginning of period, before tax	$ 63,091	$ 63,041	$ 437,140
Balance, beginning of period, after tax	38,801	$ 38,770	$ 268,841
Sale of unexpired contracts previously subject to hedge accounting rules, before tax	(119,917)
Sale of unexpired contracts previously subject to hedge accounting rules, after tax	(73,749)
Other reclassifications due to expired contracts previously subject to hedge accounting rules, before tax	56,826	$ 50	$ (374,099)
Other reclassifications due to expired contracts previously subject to hedge accounting rules, after tax	$ 34,948	31	(230,071)
Balance, end of period, before tax		63,091	63,041
Balance, end of period, after tax		$ 38,801	$ 38,770