CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES - Purchase and Sale Agreement (Details) bbl / d in Thousands, bbl in Millions				3 Months Ended
	Nov. 01, 2021 USD ($)	Jun. 29, 2021 USD ($)	May 26, 2021 USD ($) a bbl / d bbl	Dec. 31, 2021 USD ($)
Deposit Note | Seller
Revenue, Major Customer
Promissory note			$ 10,000,000
Debt instrument, stated rate (as a percent)			12.00%
Debt instrument term, option one			45 days
Debt instrument term, option two			5 years
Capital Addition Purchase Commitments | Vertex Operating, Vertex Refining, LLC, Vertex Refining OH, LLC, Cedar Marine Terminals, L.P. and H & H Oil, L.P.
Revenue, Major Customer
Shares of common stock placed into escrow		$ 7,000,000
Period of shares in escrow		18 months
Consecutive trading days		10 days
Amount required for escrow		$ 7,000,000
Percentage in excess of outstanding common stock		19.90%
Break-Fee		$ 3,000,000
Capital Addition Purchase Commitments | Subsequent Event
Revenue, Major Customer
Capital project	$ 13,000,000
Capital Addition Purchase Commitments | Forecast
Revenue, Major Customer
Capital project				$ 85,000,000
Amount payable after closing				8,700,000
Seller | Capital Addition Purchase Commitments
Revenue, Major Customer
Acre site | a			800
Nameplate annual production capacity (bbl/day) | bbl / d			91
Percentage of annual production as distillate, gasoline and jet fuel			70.00%
Inventory acquired (barrels) | bbl			3.2
Initial base purchase price for the assets			$ 75,000,000
Seller | Capital Addition Purchase Commitments | Forecast
Revenue, Major Customer
Purchase price adjustment and reimbursement				$ 86,700,000
Vertex Operating, Vertex Refining, LLC, Vertex Refining OH, LLC, Cedar Marine Terminals, L.P. and H & H Oil, L.P. | Capital Addition Purchase Commitments | Safety-Kleen
Revenue, Major Customer
Initial base purchase price for the assets		$ 140,000,000
Extension option, period		90 days