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Organization and Nature of Operations
8 Months Ended
Sep. 10, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Organization and Nature of Operations
ORGANIZATION AND NATURE OF OPERATIONS

Heritage-Crystal Clean, Inc., a Delaware corporation and its subsidiaries (collectively the “Company”), provides parts cleaning and hazardous and non-hazardous waste services primarily to small and mid-sized customers in both the manufacturing and vehicle maintenance sectors.  The Company's service programs include parts cleaning, containerized waste management, used oil collection, vacuum truck services, waste antifreeze collection and recycling, and field services.  The Company also owns and operates a used oil re-refinery through which it recycles used oil into high quality base oil for lubricants as well as other re-refinery byproducts. The Company also has multiple locations where it dehydrates used oil to be sold as recycled fuel oil. The Company's locations are in the United States and Ontario, Canada. The Company conducts its primary business operations through Heritage-Crystal Clean, LLC, its wholly owned subsidiary, and all intercompany balances have been eliminated in consolidation.

The Company’s fiscal year ends on the Saturday closest to December 31.  The most recent fiscal year ended on January 2, 2016.  Each of the Company's first three fiscal quarters consists of twelve weeks while the last fiscal quarter consists of sixteen or seventeen weeks.  

In the Company's Environmental Services segment, product revenues include sales of solvent, machines, antifreeze, and accessories; and service revenues include drum waste removal services, servicing of parts cleaning machines, vacuum truck services, field services, and other services.  In the Company's Oil Business segment, product revenues include sales of re-refined base oil, byproducts, recycled fuel oil, and used oil; and service revenues include revenues from collecting used oil, collecting and recycling of oil filters and collecting and disposing of waste water. Due to the Company's integrated business model, it is impracticable to separately present costs of tangible products and costs of services.