SUBSEQUENT EVENTS (Details 3) (USD $)	0 Months Ended	3 Months Ended			0 Months Ended	1 Months Ended	3 Months Ended					12 Months Ended							0 Months Ended
	May 02, 2014 Omega Refining Subsequent Event	Aug. 31, 2014 Forecast	Aug. 31, 2014 Forecast Omega Refining and Bango Refining closing gal	Aug. 31, 2014 Forecast Omega Refining	May 02, 2014 Restricted common stock Omega Refining Subsequent Event	May 13, 2014 Common stock Omega Refining Subsequent Event	Aug. 31, 2014 Common stock Forecast Bango Refining	Aug. 31, 2014 Vertex Refining Nevada, LLC Forecast Omega Refining and Bango Refining	Aug. 31, 2014 Vertex Refining Nevada, LLC Minimum Forecast Omega Refining and Bango Refining	Aug. 31, 2014 Vertex Refining Nevada, LLC Maximum Forecast Omega Refining and Bango Refining	Aug. 31, 2014 Vertex Refining LA, LLC Forecast Omega Refining and Bango Refining	Dec. 31, 2015 Vertex Refining LA, LLC Forecast Omega Refining and Bango Refining	May 02, 2014 Omega Secured Note Vertex Refining Nevada, LLC Omega Refining and Bango Refining Subsequent Event	May 02, 2014 Purchase Price Loan Vertex Refining Nevada, LLC Omega Refining and Bango Refining Subsequent Event	May 02, 2014 First Inventory Loan Vertex Refining Nevada, LLC Omega Refining and Bango Refining Subsequent Event	May 02, 2014 Second Inventory Loan Vertex Refining Nevada, LLC Omega Refining and Bango Refining Subsequent Event	May 02, 2014 Draw Down Loan Vertex Refining Nevada, LLC Omega Refining and Bango Refining Subsequent Event	May 02, 2014 Capital Expenditure Loan Vertex Refining Nevada, LLC Maximum Omega Refining and Bango Refining Subsequent Event	May 02, 2014 Purchase Price Loan and Draw Down Loan Short-term federal rate Vertex Refining Nevada, LLC Omega Refining and Bango Refining Subsequent Event	May 02, 2014 First Inventory Loan and Draw Down Loan Vertex Refining Nevada, LLC Omega Refining and Bango Refining Subsequent Event	Nov. 01, 2014 First Inventory Loan and Draw Down Loan Vertex Refining Nevada, LLC Forecast Omega Refining and Bango Refining
Subsequent Event [Line Items]
Number of gallons of used motor oil re-refined per year			80,000,000
Number of separate acquisition closings			2
Amount paid for business acquisition	$ 30,750,000
Number of shares issued as part of business acquisition					500,000	500,000	1,500,000
Value of shares issued as part of business acquisition					4,000,000
Amount of loan provided to acquiree	13,800,000
Number of shares issued held in escrow							650,000
Value of common shares held in escrow (in USD per share)							$ 3.2301
Value of common shares held in escrow							2,100,000
Anniversary which remaining shares held in escrow will be released		18 months
Indemnification obligations of the seller (maximum)		5,000,000
Promissory note receivable													13,858,067	7,560,000	750,000	1,400,000	3,150,000	1,000,000
Note receivable, effective interest rate																			0.33%
Note receivable, stated interest rate																				9.50%	9.50%
Interest rate in the event of default													18.00%
Earnings before interest, taxes, depreciation, and amortization (EBITDA), annual target amount (minimum)								3,500,000.0			8,000,000	9,000,000
Earnings before interest, taxes, depreciation, and amortization (EBITDA), aggregate target amount (maximum)								$ 6,000,000
Earnings before interest, taxes, depreciation, and amortization (EBITDA), shares (maximum)											470,498	770,498
Number of consecutive trading days used to compute weighted-average closing price per share								10 days
Volume-weighted average price (VWAP) (in USD per share)									$ 3.15	$ 10.00
EBITDA measurement period											12 months
EBITDA performance period			18 months
Number of common shares issued to number of common shares outstanding (maximum percentage)			19.90%
Maximum combined voting power, percentage			19.90%
Time period intervals which the Company is responsible for damages				30 days
Percentage of aggregate number of shares issued				1.00%