SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
Jun. 30, 2021
Accounting Policies [Abstract]
Revenue Recognition	Revenue Recognition: The Company recognizes revenue, net of applicable sales tax, when performance obligations are satisfied through the transfer of control of promised goods or services to the Company’s customers. Control transfers once a customer has the ability to direct the use of, and obtain substantially all of the benefits from, the promised goods or services. Outbound shipping and handling activities to customers are considered fulfillment activities with the exception of mailbacks sold as part of the vendor managed inventory ("VMI") program. Shipping and handling are considered separate performance obligations for mailbacks sold under the VMI program. For performance obligations satisfied at a point in time, which applies to all contracts except for route-based pickup services, revenue recognition occurs when there is a transfer of control or completion of service. For performance obligations satisfied over time, which applies to the route-based pickup services, revenue is recognized in the amount to which the Company has a right to invoice pursuant to the right to invoice practical expedient. Provisions for certain rebates, product returns and discounts to customers are estimated at the inception of the contract, updated as needed throughout the contract term, and accounted for as reductions in sales in the same period the related sales are recorded. Product discounts granted are based on the terms of arrangements with direct, indirect and other market participants, as well as market conditions, including prices charged by competitors. Rebates are estimated based on contractual terms, historical experience, trend analysis and projected market conditions in the various markets served. Other than the Company’s mailbacks and unused medication solutions, the Company’s solutions have a single performance obligation. The Company's mailbacks and unused medication solutions have revenue producing components that are recognized over multiple delivery points (Sharps Recovery System and various other solutions like the MedSafe and TakeAway Medication Recovery Systems referred to as “mailbacks” or "unused medications") and can consist of up to two performance obligations, or units of measure, as follows: (1) the sale of the compliance and container system, and (2) return transportation and treatment service. For mailbacks that are part of the VMI program, there is an additional element, or unit of measure, for outbound transportation. For contracts with multiple performance obligations, an estimated stand-alone selling price is determined for all performance obligations. The consideration is then allocated to the performance obligations based on their relative stand-alone selling price. The selling price for performance obligations for transportation and treatment utilizes third party evidence. The Company estimates the selling price of the compliance and container system based on the product and services provided, including the expected cost plus a margin. The allocated transaction price for the sale of the compliance and container system is recognized upon delivery to the customer, at which time the customer has control. The allocated transaction price for the return transportation and treatment revenue is recognized when the customer returns the compliance and container system and the container has been received at the Company’s owned or contracted facilities. The compliance and container system is mailed or delivered by an alternative logistics provider to the Company’s owned or contracted facilities at which point the destruction or conversion and proof of receipt and treatment are performed on the container. Consideration received and allocated to the transportation and treatment performance obligation is recorded as a contract liability until the services are performed. Through regression analysis of historical data, the Company has determined that a certain percentage of all compliance and container systems sold may not be returned. Accordingly, a portion of the return transportation and treatment element is recognized at the point of sale. Furthermore, the current and long-term portions of amounts historically referred to as deferred revenues (shown as Contract Liability on the condensed consolidated balance sheets) are determined through regression analysis and historical trends. The VMI program includes terms that meet the “bill and hold” criteria and as such are recognized when the order is placed, title has transferred, there are no acceptance provisions and amounts are segregated in the Company’s warehouse for the customer.The contract asset is related to VMI service agreements within the mailbacks contract type category when the revenue recognition exceeds the amount of consideration the Company was entitled to at the point in time of satisfying the performance obligation associated with the sale of the compliance and container system. The contract liability is related to the mailbacks and unused medications contract type categories in which cash consideration exceeds the transaction price allocated to completed performance obligations
Income Taxes	Income Taxes: Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. A valuation allowance is established when it is more likely than not that some portion or all of the deferred tax assets will not be realized. The establishment of a valuation allowance requires significant judgment and is impacted by various estimates. Both positive and negative evidence, as well as the objectivity and verifiability of that evidence, is considered in determining the appropriateness of recording a valuation allowance on deferred tax assets. The Company has historically recorded a valuation allowance to reduce its deferred tax assets to an amount that is more likely than not to be realized. However, during the year ended June 30, 2020, the Company released the full amount of the valuation allowance against its deferred tax assets on the basis of the Company's reassessment of the recoverability of its deferred tax assets. The Company is subject to income taxes in the United States and in numerous state tax jurisdictions. Significant judgment is required in evaluating the Company’s tax positions and determining its provision for income taxes. The Company accounts for uncertain tax positions in accordance with FASB ASC 740, which prescribes the minimum recognition threshold a tax position taken or expected to be taken in a tax return is required to meet before being recognized in the financial statements. The Company has not recognized any material uncertain tax positions for the years ended June 30, 2021, 2020 and 2019. Tax return filings which are subject to review by federal and state tax authorities by jurisdiction are as follows: •United States – fiscal years ended June 30, 2018 and after •State of Texas – fiscal years ended June 30, 2016 and after •States of California, Georgia, Pennsylvania and New York - fiscal years ended June 30, 2018 and after •New York City - fiscal years ended June 30, 2018 and after •Other States – fiscal years ended June 30, 2017 and after None of the Company’s federal or state tax returns are currently under examination. The Company records income tax related interest and penalties, if applicable, as a component of the provision for income tax expense.
Leases	Leases: The Company has operating leases for real estate, field equipment, office equipment and vehicles and financing leases for vehicles and office equipment. Operating leases are included in Operating Lease Right of Use ("ROU") Asset and Operating Lease Liability on the consolidated balance sheets. Financing leases are included in Financing Lease ROU Asset and Financing Lease Liability on the consolidated balance sheets. Operating and financing lease asset and liability amounts are measured and recognized based on discounted future cash flow payment amounts the Company expects to make over the expected term of the underlying leases, including renewal periods the Company is reasonably certain to exercise. The lease liability for leases expected to be settled in twelve-months or less are classified as current liabilities. The general terms of the Company’s lease agreements require monthly payments. Some of the Company’s leases escalate either by fixed or variable amounts. Certain of the Company’s leases, which provide for variable lease payments based on index-based (i.e., the US Consumer Price Index) adjustments to lease payments over the term of the lease, are measured at the lease rate effective at the commencement of the lease or upon adoption, as applicable. Because the Company does not generally have access to the rate implicit in its leases, the Company utilizes its incremental borrowing rate as the discount rate for measuring the lease liability. At commencement, the operating lease ROU asset and lease liability are the same, with adjustments to the ROU asset for lease incentives and initial direct costs incurred. The Company reviews all options to extend, terminate or purchase its ROU assets at the commencement of the lease and on an ongoing basis and accounts for these options when they are reasonably certain of being exercised. The Company evaluates lease modifications as they occur and records such as a separate lease or an adjustment to the existing ROU asset and lease liability as appropriate. Operating lease expense is recorded on a straight-line basis over the lease term with amortization of the ROU asset calculated as the difference between the straight-line operating lease expense and the implied interest expense on the lease liability. Interest expense related to financing leases is calculated using the effective interest method and amortization of the financing lease ROU asset is recorded on a straight-line basis. On the statement of cash flows, operating lease expense is included in operating cash flows and repayment of financing leases is a financing activity.
Accounts Receivable	Accounts Receivable: Accounts receivable consist primarily of amounts due to the Company from normal business activities. Accounts receivable balances are determined to be delinquent when the amount is past due based on the contractual terms with the customer. The Company maintains an allowance for doubtful accounts to reflect the likelihood of not collecting certain accounts receivable based on past collection history and specific risks identified among uncollected accounts. Accounts receivable are charged to the allowance for doubtful accounts when the Company determines that the receivable will not be collected and/or when the account has been referred to a third-party collection agency.
Stock-Based Compensation	Stock-Based Compensation: Stock-based compensation cost for options and restricted stock awarded to employees and directors is measured at the grant date based on the calculated fair value of the award and is recognized as an expense over the requisite service period (generally the vesting period of the equity grant). Contingently issued awards with a requisite service period that precedes the grant date are measured and recognized at the start of the requisite service period and remeasured each reporting period until the grant date. The Company estimates the fair value of restricted stock awards based on the closing price of the Company’s common stock on the date of the grant. The Company estimates the fair value of stock options using the Black-Scholes valuation model. Key input assumptions used to estimate the fair value of stock options include the exercise price of the award, the expected option term, the expected volatility of the Company’s stock over the option’s expected term, the risk free interest rate over the option’s expected term and the Company’s expected annual dividend yield. The risk free interest rate is derived using the U.S. Treasury yield curve in effect at date of grant. Volatility, expected life and dividend yield are based on historical experience and activity.The Company considers an estimated forfeiture rate for stock options based on historical experience and the anticipated forfeiture rates during the future contract life.
Goodwill and Other Identifiable Intangible Assets	Goodwill and Other Identifiable Intangible Assets: Finite-lived intangible assets are amortized over their respective estimated useful lives and evaluated for impairment periodically whenever events or changes in circumstances indicate that their related carrying values may not be fully recoverable. Goodwill is assessed for impairment at least annually. The Company generally performs its annual goodwill impairment analysis using a quantitative approach. The quantitative goodwill impairment test identifies the existence of potential impairment by comparing the fair value of our single reporting unit with its carrying value, including goodwill. If the fair value of a reporting unit exceeds its carrying value, the reporting unit’s goodwill is considered not to be impaired. If the carrying value of a reporting unit exceeds its fair value, an impairment charge is recognized in an amount equal to that excess. The impairment charge recognized is limited to the amount of goodwill present in our single reporting unit. These estimates and assumptions could have a significant impact on whether or not an impairment charge is recognized and the amount of any such charge. The Company performs its annual impairment assessment of goodwill during the fourth quarter of each fiscal year.
Intangible Assets	Intangible Assets: Intangible assets consist of (i) acquired customer relationships, (ii) permit costs related to the Company’s treatment facilities and transfer stations, (iii) patents and (iv) defense costs related to certain existing patents.
Cash	Cash: The Company maintains funds in bank accounts that, at times, may exceed the limit insured by the Federal Deposit Insurance Corporation (“FDIC”). The risk of loss attributable to these uninsured balances is mitigated by depositing funds only in high credit quality financial institutions. The Company has not experienced any losses in such accounts.
Inventory	Inventory: Inventory consists primarily of raw materials and finished goods held for sale and are stated at the lower of cost or net realizable value using the average cost method. The Company periodically reviews the value and classification of items in inventory and provides write-downs or write-offs of inventory based on its assessment of physical deterioration, obsolescence, changes in price levels and other causes. The current portion of inventory includes amounts which the Company expects to sell in the next twelve month period based on historical sales.
Property, Plant and Equipment	Property, Plant and Equipment and Financing Lease ROU Assets: Property, plant and equipment, including third party software and implementation costs, is stated at cost, or fair value if acquired in a business combination or financing lease ROU assets, less accumulated depreciation. Depreciation is computed using the straight-line method based on the estimated useful lives of the assets or the term of the lease. Additions, improvements and renewals significantly adding to the asset value or extending the life of the asset are capitalized. Ordinary maintenance and repairs, which do not extend the physical or economic life of the property or equipment, are charged to expense as incurred. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts, and any resulting gain or loss is reflected in the results of operations for the period. Computer and software development costs, which include costs of computer software developed or obtained for internal use, all programming, implementation and costs incurred with developing internal-use software, are capitalized during the development project stage. External direct costs of materials and services consumed in developing or obtaining internal-use computer software are capitalized. The Company expenses costs associated with developing or obtaining internal-use software during the preliminary project stage. Training and maintenance costs associated with system changes or internal-use software are expensed as incurred. Additionally, the costs of data cleansing, reconciliation, balancing of old data to the new system, creation of new/additional data and data conversion costs are expensed as incurred.
Impairment of Long-lived Assets	Impairment of Long-lived Assets: The Company evaluates the recoverability of property, plant and equipment and intangible or other assets if facts and circumstances indicate that any of those assets might be impaired. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared to the asset’s carrying amount to determine if a write-down to fair value is necessary.
Shipping and Handing Fees and Costs	Shipping and Handling Fees and Costs: The Company records amounts billed to customers for shipping and handling as revenue. Costs incurred by the Company for shipping and handling have been classified as cost of revenues.
Advertising Costs	Advertising Costs: Advertising costs are charged to expenses when incurred and totaled $0.9 million for each of the fiscal years ended June 30, 2021, 2020 and 2019.
Research and Development Costs	Research and Development Costs: Research and development costs are charged to expense when incurred. Research activities represent an important part of the Company’s business and include both internal labor costs and payments to third parties related to the processes of discovering, testing and developing new products, improving existing products, as well as demonstrating product efficacy and regulatory compliance prior to launch of new products and services. Research and development expenses paid the third parties totaled less than $0.1 million for each of the fiscal years ended June 30, 2021, 2020 and 2019.
Employee Benefit Plans	Employee Benefit Plans: In addition to group health-related benefits, the Company maintains a 401(k) employee savings plan available to all full-time employees. The Company matches a portion of employee contributions with cash (25% of employee contribution up to 6%). Company contributions to the 401(k) plan were less than $0.1 million in each of the fiscal years ended June 30, 2021, 2020 and 2019, respectively and are included in selling, general and administrative expenses. For purposes of the group health benefit plan, the Company self-insures an amount equal to the excess of the employees’ deductible (range from $2,500 for each individual and family member covered) up to the amount by which the third-party insurance coverage begins (ranges from $2,500 for individual up to $10,000 for family coverage). The amount of liability at June 30, 2021 and 2020 was less than $0.1 million and is included in accrued liabilities. The Company also has an incentive plan for executives of the Company, which provides for performance based cash and stock-based compensation awards.
Net Income (Loss) Per Share	Net Income (Loss) Per Share: Basic earnings per share excludes dilution and is determined by dividing net income (loss) by the weighted average number of common shares outstanding including participating securities during the period. Diluted EPS reflects the potential dilution that could occur if securities and other contracts to issue common stock were exercised or converted into common stock.
Fair Value of Financial Instruments	Fair Value of Financial Instruments: The Company considers the fair value of all financial instruments, including cash, accounts receivable and accounts payable to approximate their carrying values at year-end due to their short-term nature. The carrying value of the Company’s debt approximates fair value due to the market rates of interest.
Fair Value Measurements	Fair Value Measurements: The Company employs a hierarchy which prioritizes the inputs used to measure recurring fair value into three distinct categories based on the lowest level of input that is significant to the fair value measurement. The methodology for categorizing assets and liabilities that are measured at fair value pursuant to this hierarchy gives the highest priority to unadjusted quoted prices in active markets and the lowest levels to unobservable inputs, summarized as follows: •Level 1 – Quoted prices in active markets for identical assets or liabilities. •Level 2 – Other significant observable inputs (including quoted prices in active markets for similar assets or liabilities). •Level 3 – Significant unobservable inputs (including our own assumptions in determining fair value). We use the cost, income or market valuation approaches to estimate the fair value of our assets and liabilities when insufficient market-observable data is available to support our valuation assumptions. We determine the fair value of our interest rate swap executed during the year ended June 30, 2020 using third-party pricing information that is derived from observable market inputs, which we classify as level 2 with respect to the fair value hierarchy.
Segment Reporting	Segment Reporting: The Company operates in a single segment, focusing on developing cost-effective management solutions for medical waste and unused dispensed medications generated by small and medium quantity generators.
Use of Estimates	Use of Estimates: The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expense during the reporting period. The Company uses estimates to determine many reported amounts, including but not limited to allowance for doubtful accounts, recoverability of long-lived assets and intangibles, useful lives used in depreciation and amortization, income taxes and valuation allowances, stock-based compensation, fair values of assets and liabilities acquired in business combinations, selling price used in multiple-deliverable arrangements and return rates used to estimate the percentage of container systems sold that will not be returned. Actual results could differ from these estimates.
Business Combinations	Business Combinations: The Company includes the results of operations of the businesses that are acquired as of the respective dates of acquisition. The Company allocates the fair value of the purchase price of acquisitions to the assets acquired and liabilities assumed based on their estimated fair values. The Company estimates and records the fair value of purchased intangible assets, which primarily consists of customer relationships, trade-names, and non-competes. The excess of the fair value of the purchase price over the fair values of these identifiable assets, both tangible and intangible, and liabilities is recorded as goodwill.
Deferred Offering Costs	Deferred Offering Costs: The Company capitalizes certain legal, accounting and other third-party fees that are directly associated with an offering as deferred offering costs in Other Assets (long-term) in the Consolidated Balance Sheets until such financings are consummated. These deferred costs will be reclassified to stockholders' equity or debt in the event the Company completes a debt or equity offering.
Recently Issued Accounting Standards	Recently Issued Accounting Standards: In March 2020, guidance for applying optional expedients and exceptions to ease the potential burden in accounting for reference rate reform on financial reporting was issued. It is elective and applies to all entities, subject to meeting certain criteria, that have contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform on financial reporting. The provisions of the new guidance are effective for interim periods beginning as of March 12, 2020 through December 31, 2022. There has been no material impact on the Company's consolidated financial statements and related disclosures from the modification of its arrangements as of June 30, 2021. The Company will continue to evaluate the standard as well as additional changes, modifications or interpretations which may impact the Company. In June 2016, guidance for credit losses of financial instruments was issued, which requires entities to measure credit losses for financial assets measured at amortized cost based on expected losses rather than incurred losses. The provisions of the new guidance are effective for annual periods beginning after December 15, 2022 (effective July 1, 2023 for the Company), including interim periods within the reporting period, and early application is permitted. The Company is in the initial stages of evaluating the impact of the new guidance on its consolidated financial statements and related disclosures as well as evaluating the available transition methods. The Company will continue to evaluate the standard as well as additional changes, modifications or interpretations which may impact the Company.
Reclassification of Prior Year Presentation in the Consolidated Balance Sheets	Reclassification of Prior Year Presentation in the Consolidated Balance Sheets: Certain prior year amounts have been reclassified for consistency with the current year presentation in the Consolidated Balance Sheets. The change in classification does not affect previously reported total current assets, total assets, total current liabilities, total liabilities or total stockholders' equity in the Consolidated Balance Sheets.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

12 Months Ended

Jun. 30, 2021

Revenue Recognition:

The Company recognizes revenue, net of applicable sales tax, when performance obligations are satisfied through the transfer of control of promised goods or services to the Company’s customers. Control transfers once a customer has the ability to direct the use of, and obtain substantially all of the benefits from, the promised goods or services. Outbound shipping and handling activities to customers are considered fulfillment activities with the exception of mailbacks sold as part of the vendor managed inventory ("VMI") program. Shipping and handling are considered separate performance obligations for mailbacks sold under the VMI program. For performance obligations satisfied at a point in time, which applies to all contracts except for route-based pickup services, revenue recognition occurs when there is a transfer of control or completion of service. For performance obligations satisfied over time, which applies to the route-based pickup services, revenue is recognized in the amount to which the Company has a right to invoice pursuant to the right to invoice practical expedient. Provisions for certain rebates, product returns and discounts to customers are estimated at the inception of the contract, updated as needed throughout the contract term, and accounted for as reductions in sales in the same period the related sales are recorded. Product discounts granted are based on the terms of arrangements with direct, indirect and other market participants, as well as market conditions, including prices charged by competitors. Rebates are estimated based on contractual terms, historical experience, trend analysis and projected market conditions in the various markets served.

Other than the Company’s mailbacks and unused medication solutions, the Company’s solutions have a single performance obligation. The Company's mailbacks and unused medication solutions have revenue producing components that are recognized over multiple delivery points (Sharps Recovery System and various other solutions like the MedSafe and TakeAway Medication Recovery Systems referred to as “mailbacks” or "unused medications") and can consist of up to two performance obligations, or units of measure, as follows: (1) the sale of the compliance and container system, and (2) return transportation and treatment service. For mailbacks that are part of the VMI program, there is an additional element, or unit of measure, for outbound transportation. For contracts with multiple performance obligations, an estimated stand-alone selling price is determined for all performance obligations. The consideration is then allocated to the performance obligations based on their relative stand-alone selling price. The selling price for performance obligations for transportation and treatment utilizes third party evidence. The Company estimates the selling price of the compliance and container system based on the product and services provided, including the expected cost plus a margin.

The allocated transaction price for the sale of the compliance and container system is recognized upon delivery to the customer, at which time the customer has control. The allocated transaction price for the return transportation and treatment revenue is recognized when the customer returns the compliance and container system and the container has been received at the Company’s owned or contracted facilities. The compliance and container system is mailed or delivered by an alternative logistics provider to the Company’s owned or contracted facilities at which point the destruction or conversion and proof of receipt and treatment are performed on the container. Consideration received and allocated to the transportation and treatment performance obligation is recorded as a contract liability until the services are performed. Through regression analysis of historical data, the Company has determined that a certain percentage of all compliance and container systems sold may not be returned. Accordingly, a portion of the return transportation and treatment element is recognized at the point of sale.

Furthermore, the current and long-term portions of amounts historically referred to as deferred revenues (shown as Contract Liability on the condensed consolidated balance sheets) are determined through regression analysis and historical trends. The VMI program includes terms that meet the “bill and hold” criteria and as such are recognized when the order is placed, title has transferred, there are no acceptance provisions and amounts are segregated in the Company’s warehouse for the customer.The contract asset is related to VMI service agreements within the mailbacks contract type category when the revenue recognition exceeds the amount of consideration the Company was entitled to at the point in time of satisfying the performance obligation associated with the sale of the compliance and container system. The contract liability is related to the mailbacks and unused medications contract type categories in which cash consideration exceeds the transaction price allocated to completed performance obligations

Income Taxes

Income Taxes: Deferred tax assets and liabilities are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. A valuation allowance is established when it is more likely than not that some portion or all of the deferred tax assets will not be realized. The establishment of a valuation allowance requires significant judgment and is impacted by various estimates. Both positive and negative evidence, as well as the objectivity and verifiability of that evidence, is considered in determining the appropriateness of recording a valuation allowance on deferred tax assets. The Company has historically recorded a valuation allowance to reduce its deferred tax assets to an amount that is more likely than not to be realized. However, during the year ended June 30, 2020, the Company released the full amount of the valuation allowance against its deferred tax assets on the basis of the Company's reassessment of the recoverability of its deferred tax assets.

The Company is subject to income taxes in the United States and in numerous state tax jurisdictions. Significant judgment is required in evaluating the Company’s tax positions and determining its provision for income taxes. The Company accounts for uncertain tax positions in accordance with FASB ASC 740, which prescribes the minimum recognition threshold a tax position taken or expected to be taken in a tax return is required to meet before being recognized in the financial statements. The Company has not recognized any material uncertain tax positions for the years ended June 30, 2021, 2020 and 2019. Tax return filings which are subject to review by federal and state tax authorities by jurisdiction are as follows:

•United States – fiscal years ended June 30, 2018 and after

•State of Texas – fiscal years ended June 30, 2016 and after

•States of California, Georgia, Pennsylvania and New York - fiscal years ended June 30, 2018 and after

•New York City - fiscal years ended June 30, 2018 and after

•Other States – fiscal years ended June 30, 2017 and after

None of the Company’s federal or state tax returns are currently under examination. The Company records income tax related interest and penalties, if applicable, as a component of the provision for income tax expense.

Leases

Leases: The Company has operating leases for real estate, field equipment, office equipment and vehicles and financing leases for vehicles and office equipment. Operating leases are included in Operating Lease Right of Use ("ROU") Asset and Operating Lease Liability on the consolidated balance sheets. Financing leases are included in Financing Lease ROU Asset and Financing Lease Liability on the consolidated balance sheets. Operating and financing lease asset and liability amounts are measured and recognized based on discounted future cash flow payment amounts the Company expects to make over the expected term of the underlying leases, including renewal periods the Company is reasonably certain to exercise. The lease liability for leases expected to be settled in twelve-months or less are classified as current liabilities. The general terms of the Company’s lease agreements require monthly payments. Some of the Company’s leases escalate either by fixed or variable amounts. Certain of the Company’s leases, which provide for variable lease payments based on index-based (i.e., the US Consumer Price Index) adjustments to lease payments over the term of the lease, are measured at the lease rate effective at the commencement of the lease or upon adoption, as applicable. Because the Company does not generally have access to the rate implicit in its leases, the Company utilizes its incremental borrowing rate as the discount rate for measuring the lease liability. At commencement, the operating lease ROU asset and lease liability are the same, with adjustments to the ROU asset for lease incentives and initial direct costs incurred. The Company reviews all options to extend, terminate or purchase its ROU assets at the commencement of the lease and on an ongoing basis and accounts for these options when they are reasonably certain of being exercised. The Company evaluates lease modifications as they occur and records such as a separate lease or an adjustment to the existing ROU asset and lease liability as appropriate. Operating lease expense is recorded on a straight-line basis over the lease term with amortization of the ROU asset calculated as the difference between the straight-line operating lease expense and the implied interest expense on the lease liability. Interest expense related to financing leases is calculated using the effective interest method and amortization of the financing lease ROU asset is recorded on a straight-line basis. On the statement of cash flows, operating lease expense is included in operating cash flows and repayment of financing leases is a financing activity.

Accounts Receivable

Accounts Receivable: Accounts receivable consist primarily of amounts due to the Company from normal business activities. Accounts receivable balances are determined to be delinquent when the amount is past due based on the contractual terms with the customer. The Company maintains an allowance for doubtful accounts to reflect the likelihood of not collecting certain accounts receivable based on past collection history and specific risks identified among uncollected accounts. Accounts receivable are charged to the allowance for doubtful accounts when the Company determines that the receivable will not be collected and/or when the account has been referred to a third-party collection agency.

Stock-Based Compensation

Stock-Based Compensation: Stock-based compensation cost for options and restricted stock awarded to employees and directors is measured at the grant date based on the calculated fair value of the award and is recognized as an expense over the requisite service period (generally the vesting period of the equity grant). Contingently issued awards with a requisite service period that precedes the grant date are measured and recognized at the start of the requisite service period and remeasured each reporting period until the grant date. The Company estimates the fair value of restricted stock awards based on the closing price of the Company’s common stock on the date of the grant. The Company estimates the fair value of stock options using the Black-Scholes valuation model. Key input assumptions used to estimate the fair value of stock options include the exercise price of the award, the expected option term, the expected volatility of the Company’s stock over the option’s expected term, the risk free interest rate over the option’s expected term and the Company’s expected annual dividend yield. The risk free interest rate is derived using the U.S. Treasury yield curve in effect at date of grant. Volatility, expected life and dividend yield are based on historical experience and activity.The Company considers an estimated forfeiture rate for stock options based on historical experience and the anticipated forfeiture rates during the future contract life.

Goodwill and Other Identifiable Intangible Assets

Goodwill and Other Identifiable Intangible Assets: Finite-lived intangible assets are amortized over their respective estimated useful lives and evaluated for impairment periodically whenever events or changes in circumstances indicate that their related carrying values may not be fully recoverable. Goodwill is assessed for impairment at least annually. The Company generally performs its annual goodwill impairment analysis using a quantitative approach. The quantitative goodwill impairment test identifies the existence of potential impairment by comparing the fair value of our single reporting unit with its carrying value, including goodwill. If the fair value of a reporting unit exceeds its carrying value, the reporting unit’s goodwill is considered not to be impaired. If the carrying value of a reporting unit exceeds its fair value, an impairment charge is recognized in an amount equal to that excess. The impairment charge recognized is limited to the amount of goodwill present in our single reporting unit. These estimates and assumptions could have a significant impact on whether or not an impairment charge is recognized and the amount of any such charge. The Company performs its annual impairment assessment of goodwill during the fourth quarter of each fiscal year.

Intangible Assets

Intangible Assets: Intangible assets consist of (i) acquired customer relationships, (ii) permit costs related to the Company’s treatment facilities and transfer stations, (iii) patents and (iv) defense costs related to certain existing patents.

Cash

Cash: The Company maintains funds in bank accounts that, at times, may exceed the limit insured by the Federal Deposit Insurance Corporation (“FDIC”). The risk of loss attributable to these uninsured balances is mitigated by depositing funds only in high credit quality financial institutions. The Company has not experienced any losses in such accounts.

Inventory

Inventory: Inventory consists primarily of raw materials and finished goods held for sale and are stated at the lower of cost or net realizable value using the average cost method. The Company periodically reviews the value and classification of items in inventory and provides write-downs or write-offs of inventory based on its assessment of physical deterioration, obsolescence, changes in price levels and other causes. The current portion of inventory includes amounts which the Company expects to sell in the next twelve month period based on historical sales.

Property, Plant and Equipment

Property, Plant and Equipment and Financing Lease ROU Assets: Property, plant and equipment, including third party software and implementation costs, is stated at cost, or fair value if acquired in a business combination or financing lease ROU assets, less accumulated depreciation. Depreciation is computed using the straight-line method based on the estimated useful lives of the assets or the term of the lease. Additions, improvements and renewals significantly adding to the asset value or extending

the life of the asset are capitalized. Ordinary maintenance and repairs, which do not extend the physical or economic life of the property or equipment, are charged to expense as incurred. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts, and any resulting gain or loss is reflected in the results of operations for the period.

Computer and software development costs, which include costs of computer software developed or obtained for internal use, all programming, implementation and costs incurred with developing internal-use software, are capitalized during the development project stage. External direct costs of materials and services consumed in developing or obtaining internal-use computer software are capitalized.

The Company expenses costs associated with developing or obtaining internal-use software during the preliminary project stage. Training and maintenance costs associated with system changes or internal-use software are expensed as incurred. Additionally, the costs of data cleansing, reconciliation, balancing of old data to the new system, creation of new/additional data and data conversion costs are expensed as incurred.

Impairment of Long-lived Assets

Impairment of Long-lived Assets: The Company evaluates the recoverability of property, plant and equipment and intangible or other assets if facts and circumstances indicate that any of those assets might be impaired. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset are compared to the asset’s carrying amount to determine if a write-down to fair value is necessary.

Shipping and Handing Fees and Costs

Shipping and Handling Fees and Costs: The Company records amounts billed to customers for shipping and handling as revenue. Costs incurred by the Company for shipping and handling have been classified as cost of revenues.

Advertising Costs

Advertising Costs: Advertising costs are charged to expenses when incurred and totaled $0.9 million for each of the fiscal years ended June 30, 2021, 2020 and 2019.

Research and Development Costs

Research and Development Costs: Research and development costs are charged to expense when incurred. Research activities represent an important part of the Company’s business and include both internal labor costs and payments to third parties related to the processes of discovering, testing and developing new products, improving existing products, as well as demonstrating product efficacy and regulatory compliance prior to launch of new products and services. Research and development expenses paid the third parties totaled less than $0.1 million for each of the fiscal years ended June 30, 2021, 2020 and 2019.

Employee Benefit Plans

Employee Benefit Plans: In addition to group health-related benefits, the Company maintains a 401(k) employee savings plan available to all full-time employees. The Company matches a portion of employee contributions with cash (25% of employee contribution up to 6%). Company contributions to the 401(k) plan were less than $0.1 million in each of the fiscal years ended June 30, 2021, 2020 and 2019, respectively and are included in selling, general and administrative expenses. For purposes of the group health benefit plan, the Company self-insures an amount equal to the excess of the employees’ deductible (range from $2,500 for each individual and family member covered) up to the amount by which the third-party insurance coverage begins (ranges from $2,500 for individual up to $10,000 for family coverage). The amount of liability at June 30, 2021 and 2020 was less than $0.1 million and is included in accrued liabilities. The Company also has an incentive plan for executives of the Company, which provides for performance based cash and stock-based compensation awards.

Net Income (Loss) Per Share

Net Income (Loss) Per Share: Basic earnings per share excludes dilution and is determined by dividing net income (loss) by the weighted average number of common shares outstanding including participating securities during the period. Diluted EPS reflects the potential dilution that could occur if securities and other contracts to issue common stock were exercised or converted into common stock.

Fair Value of Financial Instruments

Fair Value of Financial Instruments: The Company considers the fair value of all financial instruments, including cash, accounts receivable and accounts payable to approximate their carrying values at year-end due to their short-term nature. The carrying value of the Company’s debt approximates fair value due to the market rates of interest.

Fair Value Measurements

Fair Value Measurements: The Company employs a hierarchy which prioritizes the inputs used to measure recurring fair value into three distinct categories based on the lowest level of input that is significant to the fair value measurement. The methodology for categorizing assets and liabilities that are measured at fair value pursuant to this hierarchy gives the highest priority to unadjusted quoted prices in active markets and the lowest levels to unobservable inputs, summarized as follows:

•Level 1 – Quoted prices in active markets for identical assets or liabilities.

•Level 2 – Other significant observable inputs (including quoted prices in active markets for similar assets or liabilities).

•Level 3 – Significant unobservable inputs (including our own assumptions in determining fair value).

We use the cost, income or market valuation approaches to estimate the fair value of our assets and liabilities when insufficient market-observable data is available to support our valuation assumptions. We determine the fair value of our interest rate swap executed during the year ended June 30, 2020 using third-party pricing information that is derived from observable market inputs, which we classify as level 2 with respect to the fair value hierarchy.

Segment Reporting

Segment Reporting: The Company operates in a single segment, focusing on developing cost-effective management solutions for medical waste and unused dispensed medications generated by small and medium quantity generators.

Use of Estimates

Use of Estimates: The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expense during the reporting period. The Company uses estimates to determine many reported amounts, including but not limited to allowance for doubtful accounts, recoverability of long-lived assets and intangibles, useful lives used in depreciation and amortization, income taxes and valuation allowances, stock-based compensation, fair values of assets and liabilities acquired in business combinations, selling price used in multiple-deliverable arrangements and return rates used to estimate the percentage of container systems sold that will not be returned. Actual results could differ from these estimates.

Business Combinations

Business Combinations: The Company includes the results of operations of the businesses that are acquired as of the respective dates of acquisition. The Company allocates the fair value of the purchase price of acquisitions to the assets acquired and liabilities assumed based on their estimated fair values. The Company estimates and records the fair value of purchased intangible assets, which primarily consists of customer relationships, trade-names, and non-competes. The excess of the fair value of the purchase price over the fair values of these identifiable assets, both tangible and intangible, and liabilities is recorded as goodwill.

Deferred Offering Costs

Deferred Offering Costs: The Company capitalizes certain legal, accounting and other third-party fees that are directly associated with an offering as deferred offering costs in Other Assets (long-term) in the Consolidated Balance Sheets until such financings are consummated. These deferred costs will be reclassified to stockholders' equity or debt in the event the Company completes a debt or equity offering.

Recently Issued Accounting Standards

Recently Issued Accounting Standards:

In March 2020, guidance for applying optional expedients and exceptions to ease the potential burden in accounting for reference rate reform on financial reporting was issued. It is elective and applies to all entities, subject to meeting certain criteria, that have contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform on financial reporting. The provisions of the new guidance are effective for interim periods beginning as of March 12, 2020 through December 31, 2022. There has been no material impact on the Company's consolidated financial statements and related disclosures from the modification of its arrangements as of June

30, 2021. The Company will continue to evaluate the standard as well as additional changes, modifications or interpretations which may impact the Company.

In June 2016, guidance for credit losses of financial instruments was issued, which requires entities to measure credit losses for financial assets measured at amortized cost based on expected losses rather than incurred losses. The provisions of the new guidance are effective for annual periods beginning after December 15, 2022 (effective July 1, 2023 for the Company), including interim periods within the reporting period, and early application is permitted. The Company is in the initial stages of evaluating the impact of the new guidance on its consolidated financial statements and related disclosures as well as evaluating the available transition methods. The Company will continue to evaluate the standard as well as additional changes, modifications or interpretations which may impact the Company.

Reclassification of Prior Year Presentation in the Consolidated Balance Sheets

Reclassification of Prior Year Presentation in the Consolidated Balance Sheets: Certain prior year amounts have been reclassified for consistency with the current year presentation in the Consolidated Balance Sheets. The change in classification does not affect previously reported total current assets, total assets, total current liabilities, total liabilities or total stockholders' equity in the Consolidated Balance Sheets.