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CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES - Narrative (Details)
3 Months Ended
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Feb. 12, 2016
lawsuit
Revenue, Major Customer      
Related party payments | $ $ 33,228 $ 24,689  
Vertex Refining LA, LLC      
Revenue, Major Customer      
Number of lawsuits named as defendant | lawsuit     5