Summary of Significant Accounting Policies | SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Use of Estimates The preparation of financial statements in conformity with Generally Accepted Accounting Principles ("GAAP") requires the use of certain estimates by management in determining the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Material items subject to such estimates and assumptions are the allowance for uncollectible accounts receivable, valuation of inventory at lower of cost or net realizable value, valuation of goodwill and other intangible assets, share-based compensation, and income taxes. Actual results could differ from those estimates. Revenue Recognition See description of our revenue accounting policy in Note 4. Sales Tax Amounts billed for sales tax, value added tax, or other transactional taxes imposed on revenue producing transactions are presented on a net basis and are not recognized as revenues. Operating Costs Within operating costs are cost of sales. Cost of sales in the Environmental Services segment includes the cost of the materials the Company sells and provides in its services, such as solvents and other chemicals, transportation of inventory and waste, and payments to third parties to recycle or dispose of a portion of the waste materials the Company collects. Parts cleaning machines are either sold to a customer or continue to be owned by the Company but placed offsite at a customer location to be used in parts cleaning services. When sold to a customer, machines are removed from inventory, and the costs are recognized under operating costs. The used solvent that the Company retrieves from customers in its product reuse program is accounted for as a reduction in net cost of solvent under cost of sales, whether placed in inventory or sold to a purchaser for reuse. If the used solvent is placed in inventory it is recorded at lower of cost or net realizable value. Cost of sales in the Oil Business include the costs paid to customers for used oil (if any), transportation out to customers, and costs to operate the used oil re-refinery, including utilities. Operating costs also include the Company's costs of operating its branch system and hubs. These costs include personnel costs, facility rent and utilities, truck leases, fuel, transportation, and maintenance. Operating costs are not presented separately for products and services. Selling, General, and Administrative Expenses Selling, general, and administrative expenses include costs of performing centralized business functions, including sales management at or above the regional level, billing, receivables management, accounting and finance, information technology, environmental health and safety, human resources and legal. Cash and Cash Equivalents The Company considers highly liquid investments, purchased with an original maturity of ninety days or less, to be cash equivalents. Included in cash and cash equivalents are $0.5 million and $0.1 million of cash on deposit outside the United States of America as of December 31, 2022 and January 1, 2022, respectively. Concentration Risk Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash deposits. Accounts at each institution in the United States of America are insured by the Federal Deposit Insurance Corporation (“FDIC”) up to $250,000. The Company had cash deposits in excess of the FDIC insured limit of $26.7 million and $60.9 million at December 31, 2022 and January 1, 2022, respectively. The Company has not experienced any losses in such accounts. The Company has a broad customer base and believes it is not exposed to any significant concentration of credit risk. Accounts Receivable Trade accounts receivable are recorded at the invoiced amount and do not bear interest. Consistent with industry practices, we require payment from most customers within 30 days of invoice date. Our amounts due from customers are stated at their net estimated realizable value. The allowance for uncollectible accounts is our best estimate of the amount of probable lifetime-expected credit losses in existing accounts receivable and is determined based on our historical collections experience, age of the receivable, knowledge of the customer and the condition of the general economy and industry as a whole. Accounts receivable are written off against the allowance for uncollectible accounts when we determine amounts are no longer collectible. The Company does not have any off-balance-sheet credit exposure related to its customers. Inventory Inventory consists primarily of used oil, processed oil, catalyst, new and used solvents, new and refurbished parts cleaning machines, new and used antifreeze products, drums, and other items. Inventories are valued at the lower of first-in, first-out ("FIFO") cost or net realizable value, net of any reserves for excess, obsolete, or unsalable inventory. The Company performs a physical inventory count on a periodic basis and uses the results of these counts to determine inventory quantities. These quantities are used to help determine the value of the inventory. Processed oil inventory consists of the costs of feedstock, transportation, labor, conversion costs, and re-refining overhead costs incurred in bringing the inventory to its existing condition and location. Fixed production overhead costs are capitalized in processed oil inventory based on the normal capacity of the production facility. In periods of abnormal production levels, excess overhead costs are recognized as expense in the period they are incurred. The Company continually monitors its inventory levels at each of its distribution locations and evaluates inventories for excess or slow-moving items. If circumstances indicate the cost of inventories exceed their recoverable value, inventories are reduced to net realizable value. In fiscal 2022, the Company did not incur inventory impairment charges. In fiscal year 2021 the Company recorded $0.2 million of inventory impairment charges. Prepaid and Other Current Assets Prepaid and other current assets include, but are not limited to, insurance and vehicle license contract costs, which are expensed over the term of the underlying contract. Property, Plant, and Equipment Property, plant, and equipment are stated at cost. Expenditures for major renewals and improvements are capitalized, while expenditures for repair and maintenance charges are expensed as incurred. Property, plant, and equipment acquired in business combinations are stated at fair value as of the date of the acquisition. Depreciation of property, plant, and equipment is calculated using the straight-line method over the estimated useful lives of the assets. The estimated useful lives of buildings and storage tanks range from 10 to 39 years. The estimated useful lives of machinery, vehicles, and equipment range from 3 to 25 years. Leasehold improvements are amortized over the shorter of the lease terms or five years using the straight-line method. Equipment at Customers The Company records purchases of new parts cleaning and aqua filtration machines as inventory. Parts cleaning machines are either sold to a customer or continue to be owned by the Company but placed at a customer location to be used in parts cleaning services. Aqua filtration machines are exclusively placed at a customer location to be used to filter customer fluids. When sold to a customer, machines are removed from inventory, and the appropriate revenues and costs are recognized in the statement of operations. When the Company retains title to a machine that is placed off-site at a customer location to be used in parts cleaning or aqua filtration services, the Company capitalizes the machine as a productive non-current asset under the Balance Sheet caption “Equipment at Customers” at the time the machine is placed at the customer’s site. Machines capitalized as Equipment at Customers are depreciated over their estimated useful lives of 7 to 15 years, depending on the model. Depreciation of in-service equipment commences when equipment is placed in service at a customer location. Expenditures for machines that are sold to a customer are treated as a cash outflow from operating activities on the Statement of Cash Flows. Expenditures for machines that are placed at a customer’s site to be used in parts cleaning services are treated as a cash outflow from investing activities. Acquisitions The Company accounts for acquired businesses using the purchase method of accounting, which requires that the assets acquired, liabilities assumed, and contingent consideration be recorded as of the date of acquisition at their respective fair values. It further requires that acquisition-related costs be recognized separately from the acquisition and expensed as incurred and that restructuring costs be expensed in periods subsequent to the acquisition date. In many cases, the Company engaged third party valuation appraisal firms to assist the Company in determining the fair values and useful lives of the assets acquired and liabilities assumed. The Company records a preliminary purchase price allocation for its acquisitions and finalizes purchase price allocations at the earlier of one year after acquisition date, or as additional information relative to the fair values of the assets acquired becomes known. The Company has not yet finalized the purchase price allocation for the one acquisition that was completed in fiscal 2022 as disclosed in the business combination Note 3. Identifiable Intangible Assets The fair value of identifiable intangible assets is based on material judgments made by management. The Company engages third party valuation appraisal firms to assist the Company in determining the fair values and useful lives of assets acquired of a material amount. Such valuations and useful life determinations require the Company to make material estimates and assumptions. These estimates and assumptions are based on historical experience and information obtained from the management of the acquired companies and include, but are not limited to, future expected cash flows to be earned from the continued operation of the acquired business and discount rates applied in determining the present value of those cash flows. Unanticipated events and circumstances may occur that could affect the accuracy or validity of such assumptions, estimates, or actual results. Acquisition-related finite lived intangible assets are amortized on a straight-line basis over their estimated economic lives. The Company evaluates the estimated benefit periods and recoverability of its intangible assets when facts and circumstances indicate that the lives may not be appropriate and/or the carrying value of the asset may not be recoverable. If the carrying value is not recoverable, impairment is measured as the amount by which the carrying value exceeds its estimated fair value. There were no impairment charges for intangible assets in fiscal 2022 or fiscal 2021. Software Costs The Company expenses costs incurred in the research stage of developing or acquiring internal use software, such as research and feasibility studies, as well as costs incurred in the post-implementation/operational stage, such as maintenance and training. Capitalization of software costs occurs only after the research stage is complete and after the development stage begins. The capitalized costs are amortized on a straight-line basis over the estimated useful lives of the software, ranging from 5 to 10 years. Impairment of Long-Lived Assets Long-lived assets, such as property and equipment and intangibles subject to amortization, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized as the amount by which the carrying amount of the asset exceeds the fair value of the asset. There were no impairment charges in fiscal 2022 or fiscal 2021. During fiscal 2020, we recorded impairment charges to long-lived assets relating to properties held for sale in Wilmington, Delaware and Ft. Pierce, Florida. Impairment charges recorded were approximately $1.4 million for the write-down of these properties to their fair market value. Assets to be disposed of are separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and are no longer depreciated. Income Taxes The Company accounts for income taxes to recognize the amount of taxes payable or refundable for the current year and the amount of deferred tax assets and liabilities resulting from the future tax consequences of differences between the financial statements and tax basis of the respective assets and liabilities. The Company estimates and reserves for any material uncertain tax position that is unlikely to withstand an audit by the taxing authorities. These estimates are based on judgments made with currently available information. The Company reviews these estimates and makes changes to recorded amounts of any uncertain tax positions as facts and circumstances warrant. For additional information about income taxes, see Note 15. Shipping Costs For all periods presented, amounts billed to customers related to shipping and handling are classified as revenue, and the Company's shipping and handling costs are included in operating costs. Research and Development Research and development costs are expensed as incurred within general, selling, and administrative expenses. Such costs incurred during fiscal 2022, 2021, and 2020 were $0.3 million, $0.2 million, and $0.3 million, respectively. Advertising Costs Advertising costs are expensed as incurred. Advertising expense was $0.6 million, $0.4 million, and $0.4 million for fiscal 2022, 2021, and 2020, respectively. Share-Based Compensation When a future restricted grant is approved, the Company evaluates the probability that the award will vest, based on certain performance conditions. If satisfaction of the performance criteria is deemed probable, the Company accrues compensation expense related to these awards prior to the vest date. The Company accrues compensation expense based on the fair value of the performance awards at each reporting period when the performance criteria are deemed probable. Once the performance awards have been granted, the Company values the awards at fair value on the date of grant and amortizes the expense through the end of the vesting period, or requisite service period, on a straight-line basis. The requisite service period is a function of the service condition defined for each award on a case by case basis. See Note 16 “Share-Based Compensation” for more details. Fair Value of Financial Instruments The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. These tiers include: Level 1, defined as quoted market prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, model-based valuation techniques for which all significant assumptions are observable in the market, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and Level 3, defined as unobservable inputs that are not corroborated by market data. The Company’s financial instruments consist primarily of cash and cash equivalents, trade receivables, trade payables, and notes payable. As of December 31, 2022 and January 1, 2022, the carrying values of cash and cash equivalents, trade receivables, trade payables, and notes payable are considered to be representative of their respective fair values due to the short maturity of these instruments. Insurance and Self-Insurance Policy The Company purchases insurance providing financial protection from a range of risks; as of the end of fiscal 2022, the Company's insurance policies provided coverage for general liability, vehicle liability, workers' compensation, property, and pollution liability, among other exposures. Each of these policies contains exclusions and limitations such that they would not cover all related exposures and each of these policies have maximum coverage limits and deductibles such that even in the event of an insured claim, the Company's net exposure could still have a material adverse effect on its financial results. The Company is self-insured for certain healthcare benefits provided to its employees. The liability for the self-insured benefits is limited by the purchase of stop-loss insurance. The stop-loss coverage provides payment for medical and prescription claims exceeding $300,000 per covered person, as well as an aggregate, cumulative claims cap for any given year. Accruals for losses are made based on the Company's claim experience and actuarial estimates based on historical data. Actual losses may differ from accrued amounts. At December 31, 2022 and January 1, 2022, the Company's liability for its self-insured benefits was $2.2 million and $1.6 million, respectively. Should actual losses exceed the amounts expected and the recorded liabilities be insufficient, additional expense will be recorded. Expenses incurred for healthcare benefits in fiscal 2022, 2021, and 2020 were $20.7 million, $15.9 million, and $17.6 million, respectively. Goodwill Goodwill is measured as a residual amount as of the acquisition date, which in most cases results in measuring goodwill as an excess of the purchase consideration transferred plus the fair value of any noncontrolling interest in the acquiree over the fair value of the net assets acquired, including any contingent consideration. The Company tests goodwill for impairment annually in the fourth quarter and in interim periods if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount. The Company's determination of fair value requires certain assumptions and estimates, such as margin expectations, market conditions, growth expectations, expected changes in working capital, etc., regarding expected future profitability and expected future cash flows. As of December 31, 2022 and January 1, 2022, the Company reported goodwill only in its Environmental Services segment. |