• Filing Date: 2018-05-15
  • Form Type: 10-Q
  • Description: Quarterly report
v3.8.0.1
CONCENTRATIONS, SIGNIFICANT CUSTOMERS, COMMITMENTS AND CONTINGENCIES (Details) - Customer concentration risk
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Revenues | Customer 1    
Revenue, Major Customer [Line Items]    
Concentration percentage 42.00% 8.00%
Revenues | Customer 1 | Black Oil    
Revenue, Major Customer [Line Items]    
Concentration percentage 100.00% 100.00%
Revenues | Customer 1 | Refining    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 1 | Recovery    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 2    
Revenue, Major Customer [Line Items]    
Concentration percentage 9.00% 11.00%
Revenues | Customer 2 | Black Oil    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 2 | Refining    
Revenue, Major Customer [Line Items]    
Concentration percentage 100.00% 100.00%
Revenues | Customer 2 | Recovery    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 3    
Revenue, Major Customer [Line Items]    
Concentration percentage 7.00% 15.00%
Revenues | Customer 3 | Black Oil    
Revenue, Major Customer [Line Items]    
Concentration percentage 100.00% 100.00%
Revenues | Customer 3 | Refining    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 3 | Recovery    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 4    
Revenue, Major Customer [Line Items]    
Concentration percentage 4.00% 5.00%
Revenues | Customer 4 | Black Oil    
Revenue, Major Customer [Line Items]    
Concentration percentage 100.00% 100.00%
Revenues | Customer 4 | Refining    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 4 | Recovery    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 5    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 22.00%
Revenues | Customer 5 | Black Oil    
Revenue, Major Customer [Line Items]    
Concentration percentage 100.00% 100.00%
Revenues | Customer 5 | Refining    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 5 | Recovery    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 6    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 6 | Black Oil    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 6 | Refining    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Revenues | Customer 6 | Recovery    
Revenue, Major Customer [Line Items]    
Concentration percentage 100.00% 100.00%
Receivables | Customer 1    
Revenue, Major Customer [Line Items]    
Concentration percentage 13.00% 0.00%
Receivables | Customer 2    
Revenue, Major Customer [Line Items]    
Concentration percentage 6.00% 8.00%
Receivables | Customer 3    
Revenue, Major Customer [Line Items]    
Concentration percentage 3.00% 17.00%
Receivables | Customer 4    
Revenue, Major Customer [Line Items]    
Concentration percentage 1.00% 11.00%
Receivables | Customer 5    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 0.00%
Receivables | Customer 6    
Revenue, Major Customer [Line Items]    
Concentration percentage 0.00% 12.00%