CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES (Tables)

3 Months Ended

Mar. 31, 2019

Concentrations, Significant Customers, Commitments And Contingencies Disclosure [Abstract]

Schedule of Concentrations

At March 31, 2019 and 2018 and for each of the three months then ended, the Company’s revenues and receivables were comprised of the following customer concentrations:

	Three Months Ended March 31, 2019		Three Months Ended March 31, 2018
	% of Revenues	% of Receivables	% of Revenues	% of Receivables
Customer 1	35%	28%	42%	13%
Customer 2	12%	12%	7%	3%

At March 31, 2019 and 2018 and for each of the three months then ended, the Company's segment revenues were comprised of the following customer concentrations:

	% of Revenue by Segment			% Revenue by Segment
	Three Months Ended March 31, 2019			Three Months Ended March 31, 2018
	Black Oil	Refining	Recovery	Black Oil	Refining	Recovery
Customer 1	42%	—%	—%	54%	—%	—%
Customer 2	15%	—%	—%	9%	—%	—%