Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Principles of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission (the "SEC"). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. The accompanying condensed consolidated financial statements are unaudited, but reflect all adjustments consisting of normal recurring accruals, which, in the opinion of management, are necessary to present fairly the Company's Condensed Consolidated Balance Sheets, Condensed Consolidated Statements of Income and Comprehensive Income, Condensed Consolidated Statements of Changes in Shareholders’ Equity and Condensed Consolidated Statements of Cash Flows for the interim periods presented. The Company's fiscal year ends on December 31. The Condensed Consolidated Balance Sheet as of December 31, 2022 was derived from audited consolidated financial statements but does not include all disclosures required by GAAP. These condensed consolidated financial statements should be read in conjunction with the annual consolidated financial statements and the notes thereto and the report of the Company's independent registered public accounting firm included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2022. The nature of the Company's business is such that the results of any interim period may not be indicative of the results to be expected for the entire year. Basis of Consolidation These consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany transactions have been eliminated. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Management bases these estimates and assumptions upon historical experience, existing and known circumstances, authoritative accounting pronouncements and other factors that management believes to be reasonable. Significant areas requiring the use of management estimates relate to revenue recognition, accounts receivable and the related allowance for doubtful accounts, income tax provisions, and fair value of financial instruments. Actual results could differ from these estimates. Segment Reporting The Company’s chief operating decision-makers ("CODMs") are its Chief Executive Officer and Chief Operating Officer, who make resource allocation decisions and assess performance based on financial information presented on an aggregate basis. There are no segment managers who are held accountable by the chief operating decision-makers, or anyone else, for any planning, strategy and key decision-making regarding operations. The corporate office is responsible for contract negotiation with vendors and payors, corporate compliance with healthcare laws and regulations, and revenue cycle management, among other corporate supporting functions. Accordingly, the Company has a single reportable segment and operating segment structure based on ASC 280, Segment Reporting . Accounts receivable Accounts receivable are regularly reviewed for collectability and an allowance is recorded to cover the estimated bad debts and billing modifications. The accounts receivable are presented on the Condensed Consolidated Balance Sheets net of the allowance for doubtful accounts. It is possible that the estimates of the allowance for doubtful accounts could change, which could have a material impact on our operations and cash flows. The Company writes off receivables when the likelihood for collection is remote, and when the Company believes collection efforts have been fully exhausted and it does not intend to devote additional resources in attempting to collect. The write-offs are charged against the allowance for doubtful accounts. For the nine months ended September 30, 2023, the Company's evaluation takes into consideration such factors as historical bad debt and billing modification experience, national and local economic trends and conditions, industry and regulatory conditions, other collection indicators and information about disaggregated receivables. The complexity of many third-party billing arrangements, patient qualification for medical necessity of equipment and the uncertainty of reimbursement amounts for certain services from certain payors may result in adjustments to amounts originally recorded. The estimates and charge-offs for the allowance for doubtful accounts for each reporting period were as follows: September 30, 2023 September 30, 2022 Balance, beginning of year $ 8,483 $ 7,031 Provision for uncollectible accounts 10,800 7,811 Amounts charged off (7,722) (6,326) Balance, end of period $ 11,561 $ 8,516 Included in accounts receivable at September 30, 2023 are amounts due from Medicare and Medicaid representing 31% and 5%, respectively, and 36% combined, of total outstanding net receivables. As of December 31, 2022, 48% of total outstanding receivables were amounts due from Medicare and Medicaid. Revenues from Medicare and Medicaid as percentages of the Company's traditional revenue streams, excluding COVID-19 response sales and services, for the three and nine months ended September 30, 2023 and 2022 were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Medicare revenues 46 % 46 % 45 % 47 % Medicaid revenues 8 % 8 % 9 % 9 % Total Medicare and Medicaid 54 % 54 % 54 % 56 % Inventory Inventory represents non-serialized supplies that consist of equipment parts, consumables, and associated product supplies and is expensed at the time of sale or use. The Company values inventory at the lower of cost or net realizable value. Obsolete and unserviceable inventories are valued at estimated net realizable value. Property and equipment Property and equipment is presented on the Condensed Consolidated Balance Sheets at historic cost less accumulated depreciation. Major renewals and improvements that extend the useful life of assets are capitalized to the respective property accounts, while maintenance and repairs, which do not extend the useful life of the respective assets, are expensed as incurred. Management has estimated the useful lives of equipment leased to customers. Depreciation is computed using the straight-line method over the estimated useful lives of the respective assets. Property and equipment are amortized on a straight-line basis over their estimated useful lives. Depreciation of medical equipment commences at the date of service, which represents the date that the asset has been delivered to a patient and is put in use and continues through the useful life of the asset. Property and equipment with definite useful lives are tested for impairment whenever events or changes in circumstances indicate that their carrying amount may not be recoverable. Equity investments Equity investments on the Condensed Consolidated Balance Sheets are comprised of an investment accounted for under the equity method and equity investments without readily determinable fair values accounted for under the measurement alternative described in ASC 321-10-35-2. The following table details the Company’s equity investments: September 30, 2023 December 31, 2022 Equity method investments $ 424 $ 816 Other equity investments 1,347 1,339 Balance, end of period $ 1,771 $ 2,155 The Company's equity method investments include a 49% equity interest in Solvet Services, LLC, an entity which provides health care support services to state and federal governments. Investments accounted for under the equity method are investments in unconsolidated entities over whose operating and financial policies the Company has the ability to exercise significant influence but not control. Equity method investments are initially measured at cost in the Condensed Consolidated Balance Sheets with any subsequent adjustments made to the carrying amount of the investment for the Company’s proportionate share of income or loss. Distributions received from the investee reduce the Company’s carrying value of the investment. The Company has recognized its share of income or loss on the gain (loss) from equity method investments within non-operating expenses in the Condensed Consolidated Statements of Income. Equity method investments are evaluated for impairment whenever events or changes in circumstances indicate that the carrying value of the investments may exceed the fair value. No events or changes have occurred as of September 30, 2023 that would impair the carrying value of equity method investments. Other equity investments include an equity interest in VeruStat, Inc., a remote patient monitoring entity, and an equity interest in DMEscripts, LLC, an e-prescribing platform. Other equity investments are investments without a readily determinable fair value which do not qualify for the practical expedient in ASC 820. For these investments, the Company has elected the measurement alternative which measures the investment at cost, less any impairment. ASU 2019-04 clarifies that if an entity identifies observable price changes in orderly transactions for the identical or a similar investment of the same issuer, it must measure its equity investment at fair value in accordance with ASC 820 as of the date that the observable transaction occurred. The Company was not aware of any impairment or observable price change adjustments that needed to be made as of September 30, 2023 on its investments in equity securities without a readily determinable fair value. Debt Investment The Company's debt investment is a variable rate secured convertible note issued by Healthcare DX, Inc. (d/b/a ModoHealth) on December 21, 2022, classified as an available-for-sale debt instrument. Accrued interest is due upon the 18 month maturity of the note and is included in the amortized cost basis at each reporting period. At each financial statement date until a conversion event, the debt instrument is required to be remeasured at fair value. Changes in unrealized gains and losses are included in accumulated other comprehensive income, net of tax effect, until realized. Valuation of Goodwill Goodwill resulting from business combinations is not amortized, rather, it is assessed for impairment annually and upon the occurrence of a triggering event or change in circumstances indicating a possible impairment. Such triggering events potentially warranting an annual or interim goodwill impairment assessment include, among other factors, declines in historical or projected revenue, operating income or cash flows, and sustained decreases in the Company’s stock price or market capitalization. Such changes in circumstance can include, among others, changes in the legal environment, reimbursement environment, operating performance, and/or future prospects. The Company performs its annual impairment assessment of goodwill during the fourth quarter of each year. The impairment assessment can be performed on either a quantitative or qualitative basis. The Company first assesses qualitative factors to determine whether it is necessary to perform a quantitative goodwill impairment analysis. If determined necessary, the Company applies the quantitative impairment test to identify and measure the amount of impairment, if any. Fair value determinations require considerable judgment and are sensitive to changes in underlying assumptions and factors, such as estimates of a reporting unit's fair value and judgment about impairment triggering events. As a result, there can be no assurance that the estimates and assumptions made for purposes of the annual or interim goodwill impairment test will prove to be accurate predictions of the future. During the three months ended September 30, 2023 the Company evaluated the events and changes that could indicate that goodwill might be impaired and concluded that an interim test was not necessary. Comprehensive income Comprehensive income reflects the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company's comprehensive income represents net income adjusted for unrealized gains and losses on derivative instruments, net of tax. Accumulated other comprehensive loss is presented on the accompanying Condensed Consolidated Balance Sheets as a component of shareholders' equity. Revenue recognition Revenue from a customer consists of sales and rentals of home medical equipment and patient medical services. Patient revenues are billed to and collections received from Medicare, Medicaid, third-party insurers, co-insurance and patient-pay. Patient revenue is recognized net of contractual adjustments and bad debt based on contractual arrangements with third-party payors, an evaluation of expected collections resulting from the analysis of current and past due accounts, past collection experience in relation to amounts billed and other relevant information. Contractual adjustments result from the differences between the rates charged for services and reimbursement rates paid by government-sponsored healthcare programs and insurance companies for such services. The Company's contracts with customers often include multiple products and services, and the Company evaluates these arrangements to determine the unit of accounting for revenue recognition purposes based on whether the product or service is distinct from other products or services in the arrangement and should be accounted for as a separate performance obligation. A product or service is distinct if the customer can benefit from it on its own or together with other readily available resources and the Company's ability to transfer the goods or services is separately identifiable from other promises in the contractual arrangement with the customer (e.g. patient). Revenue is then allocated to each separately identifiable good or service based on the standalone price of the items underlying the performance obligations. Most of the Company’s products fall in the Medicare Fee-for-Service (“FFS”) program which is a payment model where services are unbundled and paid for separately. These services are paid based on a Medicare determined price that is publicly available on the website for the Centers for Medicare & Medicaid Services (“CMS”). For commercial payors, HME companies must negotiate in-network pricing separately, though in general, the Company’s payors tend to benchmark their contract rates and coverage policies closely to those of Medicare. The Company considers performance obligations for sales and rentals to be met when the customer receives the equipment, and revenue for rentals is recognized over time, over the respective rental period. For revenue associated with HME rentals, the Company recognizes revenue in accordance with FASB ASC 842, “Leases,” (Topic 842). For any HME sales and services, the Company recognizes revenue under FASB ASU 2014-09, “Revenue from Contracts with Customers,” (Topic 606) and related amendments. The Company recognizes equipment rental revenue over the non-cancelable lease term, which varies based on the type of equipment rental, less estimated adjustments, in accordance with Topic 842. The Company has separate contracts with each patient that are not subject to a master lease agreement with any third-party payor. The Company would first consider the lease classification issue (sales-type lease or operating lease) and then appropriately recognize or defer rental revenue over the lease term . Revenues associated with external staffing services are accrued on an hourly basis and are recorded based on the determination of whether the Company is acting as a principal or an agent. In arrangements in which the Company manages customers' supplemental workforce needs utilizing its own network of healthcare professionals, the Company is determined to be a principal and includes the contractual gross billings in revenues with a corresponding increase to cost of revenues for worksite employee payroll costs associated with these services. Alternatively, when the Company acts as agent in the performance of workforce management, revenue is recorded based on contractually agreed upon fees or commissions with no associated cost of revenues. The revenues from each major source are summarized in the following table: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Revenue from rentals under Topic 842 Ventilator rentals, non-invasive and invasive $ 28,322 $ 23,869 $ 79,181 $ 68,123 Other durable medical equipment rentals 11,119 5,882 26,441 15,153 Revenue from sales and services under Topic 606 Equipment and supply sales 7,742 3,649 19,287 9,931 COVID-19 response sales and services — — — 2,278 Service revenues 2,219 2,359 7,360 5,839 Total revenues $ 49,402 $ 35,759 $ 132,269 $ 101,324 Revenue Accounting under Topic 842 The Company leases HME such as non-invasive and invasive ventilators, positive airway pressure ("PAP") machines, percussion vests, oxygen concentrator units and other small respiratory equipment to customers for a fixed monthly amount on a month-to-month basis. The customer generally has the right to cancel the lease at any time during the rental period. The Company accounts for these rentals as operating leases. Under FASB ASC Topic 842, the Company recognizes rental revenue on operating leases on a straight-line basis over the contractual lease term which varies based on the type of equipment rental. The lease term begins on the date equipment is delivered to patients, and revenues are recorded at amounts estimated to be received under reimbursement arrangements with third-party payors, including Medicare, private commercial payors, and Medicaid. Certain customer co-payments are included in revenue when considered probable of payment, which is generally when paid. Due to the nature of the industry and the reimbursement environment in which the Company operates, certain estimates are required to record net revenue and accounts receivable at their net realizable values. Inherent in these estimates is the risk that they will have to be revised or updated as additional information becomes available. Specifically, the complexity of many third-party billing arrangements and the uncertainty of reimbursement amounts for certain services from certain payors may result in adjustments to amounts originally recorded. Such adjustments are typically identified and recorded at the point of cash application or claim denial. Revenue Accounting under Topic 606 The Company sells HME, replacement parts and supplies to customers and recognizes revenue based on contractual payment rates as determined by the payors at the point in time where control of the good or service is transferred through delivery to the customer. The customer and, if applicable, the payors are generally charged at the time that the product is sold. For sales of equipment previously placed in service, proceeds associated with these sales are recorded to gain (loss) on disposal of property and equipment. The Company also provides sleep study services to customers and recognizes revenue when the sleep study results are complete, satisfying the performance obligation. In response to the COVID-19 pandemic, the Company began offering contact and vaccine tracing services, which revenues are recognized in the period in which the service has been provided. The transaction price on equipment sales, sleep studies and contact and vaccine tracing is the amount that the Company expects to receive in exchange for the goods and services provided. Due to the nature of the HME business, gross charges are retail charges and generally do not reflect what the Company is ultimately paid. As such, the transaction price is constrained for the difference between the gross charge and what is estimated to be collected from payors and from patients. The transaction price therefore is predominantly based on contractual payment rates as determined by the payors. The payment terms and conditions of customer contracts vary by customer type and the products and services offered. For staffing services, performance obligations in the staffing agreements are satisfied over time when the customer simultaneously receives and consumes the benefits provided. Accordingly, revenues from staffing services are recognized on an hourly basis as services are rendered by the job site employee in both principal and agent arrangements. The Company determines its estimates of contractual allowances and discounts based upon contractual agreements, its policies and historical experience. While the rates are fixed for the product or service with the customer and the payors, such amounts typically include co-payments, co-insurance and deductibles, which vary in amounts, and are due from the patient. The Company includes in the transaction price only the amount that the Company expects to be entitled, which is substantially all of the payor billings at contractual rates. The transaction price is initially constrained by the amount of customer co-payments, which are included in the transaction price when considered probable of payment and included in revenue if the product or service has already been provided to the customer. Due to the nature of the industry and the reimbursement environment in which the Company operates, certain estimates are required to record net revenue and accounts receivable at their net realizable values. Inherent in these estimates is the risk that they will have to be revised or updated as additional information becomes available. Specifically, the complexity of many third-party billing arrangements and the uncertainty of reimbursement amounts for certain services from certain payors may result in adjustments to amounts originally recorded. Such adjustments are typically identified and recorded at the point of cash application or claim denial. Returns and refunds are not accepted on equipment sales, sleep study services, staffing services, or contact and vaccine tracing services. The Company does not offer warranties to customers in excess of the manufacturer’s warranty. Any taxes due upon sale of the products or services are not recognized as revenue. The Company does not have any partially or unfilled performance obligations related to contracts with customers and as such, the Company has no contract liabilities as of September 30, 2023. Stock-based compensation The Company accounts for its stock-based compensation in accordance with ASC 718 , "Compensation—Stock Compensation" , which establishes accounting for share-based awards exchanged for employee services and requires companies to expense the estimated fair value of these awards over the requisite employee service period. Stock–based compensation costs for stock options are determined at the grant date using the Black-Scholes option pricing model. Stock-based compensation costs for restricted stock units ("RSUs") are determined at the grant date based on the closing stock price. The expense of such stock-based compensation awards is recognized using the graded vesting attribution method over the vesting period and the offsetting credit is recorded as an increase in additional paid-in capital. Forfeitures are recorded as incurred. Any excess tax benefit or deficiency is recognized as a component of income taxes and within operating cash flows upon vesting of the share-based award. For the Company’s phantom share units settled in cash, the Company computes the fair value of the phantom share units using the closing price of the Company's stock at the end of each period and records a liability based on the percentage of requisite service. Interest rate swaps The Company utilized an interest rate swap contract to reduce exposure to fluctuations in variable interest rates for future interest payments on the 2019 Term Note (as defined below). For determining the fair value of the interest rate swap contract, the Company uses significant other observable market data or assumptions (Level 2 inputs) that market participants would use in pricing similar assets or liabilities, including assumptions about counterparty risk. These fair value estimates reflect an income approach based on the terms of the interest rate swap contract and inputs corroborated by observable market data including interest rate curves. The Company presents a positive ending period fair value of the interest rate swap contract in other long-term assets, as a component of long-term assets, and a negative ending period fair value of the interest rate swap contract in accrued liabilities, as a component of long-term liabilities on the Condensed Consolidated Balance Sheets. The Company recognized any differences between the variable interest rate payments and the fixed interest rate settlements from its swap counterparty as an adjustment to interest expense over the life of the swap. If determined to be an effective cash flow hedge, the Company will record the changes in the estimated fair value of the swaps to accumulated other comprehensive income or loss on the Condensed Consolidated Balance Sheets. To the extent that interest rate swaps are determined to be ineffective, the Company would recognize the changes in the estimated fair value of swaps in interest and other non-operating expenses, net in its Condensed Consolidated Statements of Income. During the year ended December 31, 2022, the Company settled its interest rate swap in connection with the refinancing of its credit facilities and recognized the realized gain of $0.2 million in Other Income. Income taxes The Company is subject to income taxes in numerous U.S. jurisdictions. Significant judgment is required in determining the provision for income taxes. The Company's income tax provisions reflect management’s interpretation of country and state tax laws. There are many transactions and calculations for which the ultimate tax determination is uncertain during the ordinary course of business and may remain uncertain for several years after their occurrence. The Company recognizes assets and liabilities for taxation when it is probable that the Company will receive refunds from or pay taxes to the relevant tax authority. Where the final determination of tax assets and liabilities is different from the amounts that were initially recorded, such differences will impact the current and deferred income taxes provision in the period in which such a determination is made. Changes in tax law or changes in the way tax law is interpreted may also impact the Company's effective tax rate as well as the Company's business and operations. Deferred income tax assets and liabilities are recognized for the future income tax consequences attributable to temporary differences between the financial statement carrying value of assets and liabilities and their respective income tax bases. Deferred income tax assets or liabilities are measured using enacted income tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be settled. The calculation of current and deferred income taxes requires management to make estimates and assumptions and to exercise a certain amount of judgment concerning the carrying value of assets and liabilities. The current and deferred income tax assets and liabilities are also impacted by expectations about future operating results and the timing of reversal of temporary differences as well as possible audits of tax filings by regulatory agencies. Changes or differences in these estimates or assumptions may result in changes to the current and deferred tax assets and liabilities on the Condensed Consolidated Balance Sheets and a charge to or recovery of income tax expense. CARES Act Funds Received The Company received a general distribution payment from the Provider Relief Fund of $3.5 million in April 2020, a targeted distribution payment of $1.5 million in November 2021, and a general distribution payment of $0.4 million in January 2022. The U.S. Department of Health and Human Services ("HHS") has stated that Provider Relief Fund payments are not loans and will not need to be repaid. However, as a condition to the receipt of funds, the Company and any other providers must agree to a detailed set of terms and conditions. CMS has indicated that the terms and conditions may be subject to ongoing changes and reporting. There is no US GAAP guidance for for-profit health care entities that receive government grants that are not in the form of an income tax credit, revenue from a contract with a customer or a loan. As such, for-profit entities must determine the appropriate accounting treatment by analogy to other guidance such as International Accounting Standards (IAS) 20, Accounting for Government Grants and Disclosure of Government Assistance, in International Financial Reporting Standards. Under IAS 20, the Company determined that upon receipt of funds, it fully complied with the conditions attached to the grant. The Company recognized the distributions received from the Provider Relief Fund in the income statement in full during the period of receipt. To the extent that reporting requirements and terms and conditions are modified, it may affect the Company's ability to comply and may require the return of funds. The Company is not aware of any such modifications as of September 30, 2023 Recently adopted accounting pronouncements On January 1, 2023, the Company adopted ASU 2016-13, Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments. The standard replaces the current incurred loss impairment model that recognizes losses when a probable threshold is met with a requirement to recognize lifetime expected credit losses immediately when a financial asset is originated or purchased. Further, the FASB issued ASU 2019-04 and ASU 2019-05 to provide additional guidance on the credit losses standard. While the adoption of ASC 326 could result in a higher allowance recorded in the future for credit losses on receivables within the scope of the standard due to the prescribed measurement principles, the impact of the adoption on the Company's consolidated financials statements was not material. Recently issued accounting pronouncements The Company is an “emerging growth company” as defined by the JOBS Act. The JOBS Act provides that an emerging growth company can take advantage of the extended transition period provided in Section 7(a)(2)(B) of the Securities Act of 1933, as amended, for complying with new or revised accounting standards. In other words, an emerging growth company can selectively delay the adoption of all accounting standards until those standards would otherwise apply to private companies. The Company has elected to utilize this exemption and, as a result, the Company's condensed consolidated financial statements may not be comparable to the financial statements of issuers that are required to comply with the effective dates for new or revised accounting standards that are applicable to public companies. To date, however, the Company has not delayed the adoption of any accounting standards except as noted below. Section 107 of the JOBS Act provides that the Company can elect to opt out of the extended transition period at any time, which election is irrevocable. In September 2022, the FASB issued ASU No. 2022-04, Liabilities — Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations, which requires entities that use supplier finance programs in connection with the purchase of goods and services to disclose the key terms of the programs and information about their obligations that are outstanding at the end of the reporting period. The amendments in this update are effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years, except for the amendment on rollforward information, which is effective for fiscal years beginning after December 15, 2023. The Company does not expect the update to affect the recognition, measur |