The Company capitalizes inventory costs associated with its drug products following regulatory approval when future commercialization is considered probable and the future economic benefit is expected to be realized. Prior to an initial regulatory approval for our drug products under clinical development, we expense costs relating to the production of inventory as research and development expense in the Company’s consolidated statements of operations, in the period incurred.

Fixed assets: We record equipment, furniture and fixtures, and leasehold improvements at historical cost. Expenditures for maintenance and repairs are recorded to expense. Depreciation and amortization are primarily computed using the straight-line method, over the estimated useful lives of the assets. Leasehold improvements are depreciated on a straight-line basis over the lesser of the remaining lease term or the estimated useful lives of the assets.

Leases: Leases are classified as either operating or finance leases at inception. A right-of-use (ROU) asset and corresponding lease liability are established at an amount equal to the present value of fixed lease payments over the lease term at the commencement date. The ROU asset includes any initial direct costs incurred and lease payments made at or before the commencement date and is reduced by lease incentive payments. The Company has elected not to separate the lease and nonlease components for all classes of underlying assets. The Company uses its incremental borrowing rate as the discount rate to determine the present value of the lease payments for leases that do not have a readily determinable implicit discount rate. The incremental borrowing rate is the rate of interest that the Company would be charged to borrow on a collateralized basis over a similar term and amount in a similar economic environment. The Company determines the incremental borrowing rates for its leases by adjusting the risk-free interest rate with a credit risk premium corresponding to the Company’s credit rating.

Operating lease costs are recognized for fixed lease payments on a straight-line basis over the term of the lease. Finance lease costs are a combination of the amortization expense for the ROU asset and interest expense for the outstanding lease liability using the applicable discount rate. Variable lease payments are recognized when incurred based on occurrence or usage. Short-term leases with an initial term of 12 months or less are not recorded on the balance sheet; we recognize lease expense for short-term leases on a straight-line basis over the lease term.

Patents and trademarks: The costs for patents and trademarks are expensed when incurred.

Goodwill and intangible assets: The Company’s goodwill and intangible assets, primarily developed technology and in-process research and development (IPR&D), arose from the acquisition of APP (the “APP Acquisition”) on October 31, 2016. Goodwill and indefinite-lived intangible assets are not amortized. IPR&D is accounted for as indefinite-lived intangible assets until the underlying project receives regulatory approval, at which point the intangible asset will be accounted for as a finite-lived intangible asset, or discontinuation, at which point the intangible asset will be written off. Goodwill and indefinite-lived assets are subject to an impairment review annually, in the fourth quarter of each fiscal year, and more frequently when indicators of impairment exist. An impairment of goodwill could occur if the carrying amount of a reporting unit exceeded the fair value of that reporting unit. An impairment of indefinite-lived intangible assets would occur if the fair value of the intangible asset is less than the carrying value. Intangible assets with finite lives are tested for impairment when events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. These intangible assets are carried at cost less accumulated amortization.

Goodwill consists of the cost of an acquired business in excess of the fair value of the net assets acquired. The Company’s goodwill is assigned to the reporting unit that is expected to benefit from the synergies of a business combination. The Company has identified two reporting units within its single operating segment. The Company tests goodwill and indefinite-lived intangible assets for impairment by first assessing qualitative factors to determine whether it is more likely than not that the fair value is less than its carrying amount. If the Company concludes it is more likely than not that the fair value is less than its carrying amount, a quantitative impairment test is performed. For its quantitative impairment tests, the Company uses an estimated future cash flow approach that requires significant judgment with respect to future volume, revenue and expense growth rates, changes in working capital use, the selection of an appropriate discount rate, asset groupings and other assumptions and estimates. The estimates and assumptions used are consistent with the Company's business plans and a market participant's views. The use of alternative estimates and assumptions could increase or decrease the estimated fair value of the assets and potentially result in different impacts to the Company's results of operations. Actual results may differ from the Company's estimates. The fair value of the reporting unit is compared with its carrying amount and an impairment charge would be recognized for the amount by which the carrying value exceeds the reporting unit’s fair value.

Regarding goodwill, the estimated fair value of a reporting unit is highly sensitive to changes in projections and assumptions; therefore, in some instances changes in these assumptions could potentially lead to impairment. We perform sensitivity analyses around our assumptions in order to assess the reasonableness of the assumptions and the results of our testing. Changes in these assumptions may impact the estimated fair value of a reporting unit and cause the fair value of the reporting unit to be below its carrying value. We believe that our estimates are consistent with assumptions that marketplace participants would use in their estimates of fair value; however, if actual results are not consistent with our estimates and assumptions, we may be exposed to an impairment charge that could be material.

Intangible assets are highly vulnerable to impairment charges, particularly IPR&D. These assets are initially measured at fair value and therefore any reduction in expectations used in the valuations could potentially lead to impairment. Some of the more common potential risks leading to impairment include competition, earlier than expected loss of exclusivity, pricing pressures, adverse regulatory changes or clinical trial results, delay or failure to obtain regulatory approval, additional development costs, inability to achieve expected synergies, higher operating costs, changes in tax laws and other macro-economic changes. The complexity in estimating the fair value of intangible assets in connection with an impairment test is similar to the initial valuation. The Company has previously recorded impairment charges related to IPR&D. Considering the high-risk nature of research and development and the industry’s success rate of bringing developmental compounds to market, additional IPR&D impairment charges are likely to occur in future periods.

Deferred financing costs: Costs incurred in connection with the common stock purchase agreements discussed in Note 10 have been included in other assets on the accompanying consolidated balance sheets at September 30, 2022 and 2021. When shares of the Company’s common stock are sold under the common stock purchase agreement, a pro-rata portion of the deferred costs is recorded to additional paid-in-capital.

Costs incurred in connection with the issuance of debt discussed in Note 9 were recorded as a reduction of the credit agreement liability and were amortized using the effective interest method over the repayment period of the debt. The debt was repaid in August 2021. The amortization is included in interest expense on the accompanying consolidated statement of operations for the year ended September 30, 2021.

Fair value measurements: Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic 820 – Fair Value Measurements and Disclosures, defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. FASB ASC Topic 820 requires disclosures about the fair value of all financial instruments, whether or not recognized, for financial statement purposes. Disclosures about the fair value of financial instruments are based on pertinent information available to us as of the reporting dates. Accordingly, the estimates presented in the accompanying consolidated financial statements are not necessarily indicative of the amounts that could be realized on disposition of the financial instruments. See Note 3 for a discussion of fair value measurements.

The carrying amounts reported in the accompanying consolidated balance sheets for cash, accounts receivable, accounts payable and other accrued liabilities approximate their fair value based on the short-term nature of these instruments. The carrying value of long-term debt, taking into consideration debt discounts and related derivative instruments, is estimated to approximate fair value.

Derivative instruments: The Company does not use derivative instruments to hedge exposures to cash flow, market or foreign currency risks. The Company reviews the terms of debt instruments it enters into to determine whether there are embedded derivative instruments, which are required to be bifurcated and accounted for separately as derivative financial instruments. Embedded derivatives that are not clearly and closely related to the host contract are bifurcated and are recognized at fair value with changes in fair value recognized as either a gain or loss in earnings. Liabilities incurred in connection with an embedded derivative are discussed in Note 9.

Revenue recognition: Revenue is recognized when control of the promised goods is transferred to the customer in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those products. See Note 4 for further discussion on revenue.

Research and development costs: Research and development costs are expensed as they are incurred and include salaries and benefits, costs to conduct clinical trials, and contract services. Nonrefundable advance payments made for goods or services to be used in research and development activities are deferred and capitalized until the goods have been delivered or the related services have been performed. If the goods are no longer expected to be delivered or the services are no longer expected to be performed, the Company would be required to expense the related capitalized advance payments. The Company did not have any material capitalized nonrefundable advance payments as of September 30, 2022 or September 30, 2021.

The Company records estimated costs of research and development activities conducted by third-party service providers, which include the conduct of preclinical studies and clinical trials and contract manufacturing activities. These costs are a significant component of the Company’s research and development expenses. The Company accrues for these costs based on factors such as estimates of the work completed and in accordance with agreements established with its third-party service providers under the service agreements. The Company makes significant judgments and estimates in determining the accrued liabilities balance in each reporting period. As actual costs become known, the Company adjusts its accrued liabilities. The Company has not experienced any material differences between accrued costs and actual costs incurred. However, the status and timing of actual services performed, number of patients enrolled and the rate of patient enrollments may vary from the Company’s estimates, resulting in adjustments to expense in future periods. Changes in these estimates that result in material changes to the Company’s accruals could materially affect the Company’s results of operations.

Prior to an initial regulatory approval for our drug products under clinical development, we expense costs relating to the production of inventory as research and development expense in the Company’s consolidated statements of operations, in the period incurred. In fiscal 2022, we recorded $18.6 million as research and development expense for pre-launch inventory costs related to sabizabulin as a treatment for COVID-19. Pre-launch inventory costs included in research and development expense were immaterial to the Company’s results of operations in fiscal 2021.

Share-based compensation: The Company recognizes share-based compensation expense in connection with its share-based awards, based on the estimated fair value of the awards on the date of grant, on a straight-line basis over the vesting period. Calculating share-based compensation expense requires the input of highly subjective judgment and assumptions, including estimates of the expected life of the share-based award, stock price volatility and risk-free interest rate.

Advertising: The Company's policy is to expense advertising costs as incurred. Advertising costs were immaterial to the Company’s results of operations for the years ended September 30, 2022 and 2021.

Income taxes: The Company files separate income tax returns for its foreign subsidiaries. FASB ASC Topic 740 requires recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Deferred tax assets are also provided for carryforwards for income tax purposes. In addition, the amount of any future tax benefits is reduced by a valuation allowance to the extent such benefits are not expected to be realized.

Foreign currency translation and operations: Effective October 1, 2009, the Company determined that there were significant changes in facts and circumstances, triggering an evaluation of its subsidiaries’ functional currency, resulting in the adoption of the U.S. dollar as the functional currency for all foreign subsidiaries. The consistent use of the U.S. dollar as the functional currency across the Company reduces its foreign currency risk and stabilizes its operating results. The cumulative foreign currency translation loss included in accumulated other comprehensive loss was $0.6 million as of September 30, 2022 and September 30, 2021. Assets located outside of the U.S. totaled approximately $10.8 million and $8.5 million at September 30, 2022 and September 30, 2021, respectively.

Other comprehensive loss: Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net loss. Although certain changes in assets and liabilities, such as foreign currency translation adjustments, are reported as a separate component of the equity section of the accompanying consolidated balance sheets, these items, along with net loss, are components of other comprehensive loss.