CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES (Tables)

6 Months Ended

Jun. 30, 2019

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

Schedule of Concentrations

At June 30, 2019 and 2018 and for each of the six months then ended, the Company’s revenues and receivables were comprised of the following customer concentrations:

	Six Months Ended June 30, 2019		Six Months Ended June 30, 2018
	% of Revenues	% of Receivables	% of Revenues	% of Receivables
Customer 1	31%	20%	42%	13%
Customer 2	17%	—%	2%	3%
Customer 3	11%	8%	9%	1%
Customer 4	7%	14%	—%	—%
Customer 5	4%	10%	5%	18%

At June 30, 2019 and 2018 and for each of the six months then ended, the Company's segment revenues were comprised of the following customer concentrations:

	% of Revenue by Segment			% Revenue by Segment
	Six Months Ended June 30, 2019			Six Months Ended June 30, 2018
	Black Oil	Refining	Recovery	Black Oil	Refining	Recovery
Customer 1	36%	—%	—%	53%	—%	—%
Customer 2	20%	—%	—%	3%	—%	—%
Customer 3	12%	—%	—%	11%	—%	—%
Customer 4	8%	—%	—%	—%	—%	—%
Customer 5	4%	—%	—%	6%	—%	—%