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Summary of Significant Accounting Policies | 12 Months Ended
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Jun. 30, 2025
Accounting Policies [Abstract] |
Summary of Significant Accounting Policies | Note 2. Summary of Significant Accounting Policies Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and disclosures made in the accompanying notes to the consolidated financial statements. We use estimates that affect the reported amounts (including assets, liabilities, revenues and expenses) and related disclosures. Actual results could materially differ from those estimates. Cash and Cash Equivalents Cash and cash equivalents consist of cash and highly liquid investments with original maturities of three months or less when purchased. Cash is maintained at financial institutions and, at times, balances may exceed federally insured limits. We have not experienced any losses related to these balances. We attempt to minimize credit risk associated with our cash and cash equivalents by periodically evaluating the credit quality of our primary financial institutions. Our investment portfolio is maintained in accordance with our investment policy, which is designed to preserve capital, safeguard funds and limit exposure to risk. While we maintain cash deposits in FDIC insured financial institutions in excess of federally insured limits, we do not believe we are exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held. We have not experienced any losses on such accounts. Short-term Investments Short-term investments are marketable securities with maturities greater than three months but less than one year from date of purchase. As of June 30, 2025, we did no t hold any short-term investments. As of June 30, 2024, we held short-term investments of $34.6 million in United States government securities. Our short-term investments were considered to be held to maturity and were carried at amortized cost. For the fiscal year ended June 30, 2025, we had no gross unrealized gains and losses. For the fiscal year ended June 30, 2024, the gross unrealized gains and losses were immaterial. Fair Value Measurements Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value is as follows: • Level 1 — Observable inputs such as quoted prices in active markets for identical assets or liabilities. • Level 2 — Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3 — Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Property and Equipment As of June 30, 2025, we have no property and equipment. Property and equipment were previously stated at cost and depreciated over the estimated useful lives of the assets (generally three to seven years) using the straight-line method and leasehold improvements were stated at cost and were amortized over the shorter of the estimated useful lives of the assets or the lease term. Leases We account for our leases under ASC Topic 842, Leases (Topic 842). Leases which are identified within the scope of Topic 842 and which have a term greater than one year are recognized on our consolidated balance sheets as right-of-use (ROU) assets and lease liabilities. Operating lease liabilities and their corresponding ROU assets are recorded based on the present value of lease payments over the expected remaining lease term. The lease term includes any renewal options and termination options that we are reasonably certain to exercise. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or incentives received. The present value of lease payments is determined by using the interest rate implicit in the lease, if that rate is readily determinable; otherwise, we use our incremental borrowing rate. The incremental borrowing rate is determined based on the rate of interest that we would pay to borrow on a collateralized basis an amount equal to the lease payments for a similar term and in a similar economic environment. The interest rate implicit in lease contracts to calculate the present value is typically not readily determinable. As such, significant management judgment is required to estimate the incremental borrowing rate. Operating lease expense for operating leases is recognized on a straight-line basis over the lease term based on the total lease payments. We have elected the practical expedient to not separate lease and non-lease components for our real estate leases. Our non-lease components are primarily related to property maintenance, which varies based on future outcomes and thus is recognized in operating lease expense when incurred. On June 18, 2024, we entered into a lease termination agreement (Agreement) with our landlord pursuant to which the parties agreed to terminate, as of September 30, 2024, the lease for our existing office space. See Note 3. Balance Sheet Details and Note 9. Leases for the impact of the Agreement on our consolidated financial statements. Revenue Recognition Revenue from Customers In accordance with ASC Topic 606, Revenue from Contracts with Customers (Topic 606), we recognized revenue when control of the promised goods or services was transferred to our customers, in an amount that reflects the consideration we expected to be entitled to in exchange for those goods or services. For enforceable contracts with our customers, we first identified the distinct performance obligations – or accounting units – within the contract. Performance obligations are commitments in a contract to transfer a distinct good or service to the customer. Payments received under commercial arrangements, such as licensing technology rights, may include non-refundable fees at the inception of the arrangements, milestone payments for specific achievements designated in the agreements and royalties on the sale of products. At the inception of arrangements that include milestone payments, we used judgment to evaluate whether the milestones were probable of being achieved and we estimated the amount, if any, to include in the transaction price using the most likely method. If it were probable that a significant revenue reversal would not occur, the estimated amount was included in the transaction price. Milestone payments that were not within our or the licensee’s control, such as regulatory approvals, were not included in the transaction price until those approvals were received. At the end of each reporting period, we re-evaluated the probability of achievement of development milestones and any related constraint and, as necessary, we adjusted our estimate of the overall transaction price. To the extent a contract included multiple promised deliverables, we applied judgment to determine whether promised deliverables were capable of being distinct and were distinct within the context of the contract. If these criteria were not met, the promised deliverables were accounted for as a combined performance obligation. For arrangements with multiple distinct performance obligations, we allocated variable consideration related to our 50-50 cost share for development services directly to the associated performance obligation and then allocated the remaining consideration among the performance obligations based on their relative stand-alone selling price. When not directly observable, we typically estimated the stand-alone selling price for each distinct performance obligation. Variable consideration that related specifically to our efforts to satisfy specific performance obligations was allocated entirely to those performance obligations. Other components of the transaction price were allocated based on the relative stand-alone selling price, over which management has applied significant judgment. We developed assumptions that required judgment to determine the stand-alone selling price for license-related performance obligations, which may have included forecasted revenues, development timelines, reimbursement rates for personnel costs, discount rates and probabilities of technical, regulatory and commercial success. We estimated stand-alone selling price for R&D performance obligations by forecasting the expected costs of satisfying a performance obligation plus an appropriate margin. In the case of a license that is a distinct performance obligation, we recognized revenue allocated to the license from non-refundable, up-front fees at the point in time when the license was transferred to the licensee and the licensee can use and benefit from the license. For licenses that are bundled with other distinct or combined obligations, we used judgment to assess the nature of the performance obligation to determine whether the performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress for purposes of recognizing revenue. If the performance obligation is satisfied over time, we evaluated the measure of progress in each reporting period and, if necessary, adjusted the measure of performance and related revenue recognition. The selection of the method to measure progress towards completion requires judgment and is based on the nature of the products or services to be provided. Revenue is recorded proportionally as costs are incurred. We generally used the cost-to-cost measure of progress because it best depicted the transfer of control to the customer which occurred as we incurred costs. Under the cost-to-cost measure of progress, the extent of progress towards completion was measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation (an input method under Topic 606). We used judgment to estimate the total cost expected to complete the R&D performance obligations, which included subcontractors’ costs, labor, materials, other direct costs and an allocation of indirect costs. We evaluated these cost estimates and the progress during each reporting period and, as necessary, we adjusted the measure of progress and related revenue recognition. In connection with our now terminated April 2020 License, Development and Commercialization Agreement with Kyowa Kirin Co., Ltd. (KKC) (the KKC Commercialization Agreement) described in Note 7. License Agreements, we performed development services related to our 50-50 cost sharing arrangement for which revenue was recognized over time. Additionally, we performed services for KKC at their request, the costs of which were fully reimbursed to us. We recorded the reimbursement for such pass through services as revenue at 100% of reimbursed costs, as control of the additional services for KKC was transferred at the time we incurred such costs. The costs of these services were recognized in the consolidated statements of operations as research and development expense. The costs of these services were recognized in the consolidated statements of operations as research and development expense. During the year ended June 30, 2025, we did not recognize any revenue associated with the KKC Commercialization Agreement. During the year ended June 30, 2024, we recognized revenue associated with the KKC Commercialization Agreement as follows (in thousands):
Timing of Revenue Recognition: |  |  |
Services performed over time |  | $ | 743 |
Pass through services at a point in time |  |  | 9 |
|  | $ | 752 |
Contract Balances Contract liabilities were included in deferred revenue and deferred revenue, long-term in our consolidated balance sheets. Our contract liabilities accounted for under Topic 606 related to the amount of initial upfront consideration allocated to the development services performance obligations. As of June 30, 2025 and 2024, we had no accounts receivable, unbilled receivables or contract liabilities. A reconciliation of the beginning and ending amount of contract liabilities as of June 30, 2024, which primarily related to the combined performance obligations for the transfer of development services under the KKC Commercialization Agreement and was a separate performance obligation in our contract pursuant to research plans under the agreements were as follows (in thousands):
|  | June 30, 2024 |
Beginning balance |  | $ | 317 |
Recognized as revenue: |  |  |
Revenue recognized upon satisfaction of performance obligations |  |  | (317 | )
Revenue recognized from change in estimate for performance obligations that are being closed |  |  | — |
Revenue recognized for performance obligations that will no longer commence |  |  | — |
Ending balance |  | $ | — |
The timing of revenue recognition, invoicing and cash collections results in billed accounts receivable and unbilled receivables (contract assets) and deferred revenue (contract liabilities). We invoiced our customers in accordance with agreed-upon contractual terms, typically at periodic intervals or upon achievement of contractual milestones. Invoicing may have occurred subsequent to revenue recognition, resulting in unbilled receivables. Advanced payments from our customers before revenue was recognized resulted in contract liabilities. Revenue from Collaborators At contract inception, we assessed whether the collaboration arrangements were within the scope of ASC Topic 808 Collaborative Agreements (Topic 808), to determine whether such arrangements involved joint operating activities performed by parties that were both active participants in the activities and exposed to significant risks and rewards dependent on the commercial success of such activities. This assessment was performed based on the responsibilities of all parties in the arrangement. For collaboration arrangements within the scope of Topic 808 that contain multiple units of account, we first determined which units of account within the arrangement were within the scope of Topic 808 and which elements were within the scope of Topic 606. For units of account within collaboration arrangements that were accounted for pursuant to Topic 808, an appropriate recognition method was determined and applied consistently, by analogy to authoritative accounting literature. For elements of collaboration arrangements that were accounted for pursuant to Topic 606, we recognized revenue as discussed above. Consideration received that did not meet the requirements to satisfy Topic 606 revenue recognition criteria was recorded as deferred revenue and classified as either current or long-term deferred revenue based on our best estimate of when such amounts would be recognized. Research and Development Research and development costs are expensed as incurred and include costs paid to third-party contractors to perform research, conduct clinical trials and develop and manufacture drug materials, as well as personnel, related benefits (including share-based compensation) and other expenses attributable to our R&D activities. Clinical trial costs, including costs associated with third-party contractors, are a significant component of R&D expenses. We expense R&D costs based on work performed. In determining the amount to expense, management relies on estimates of total costs based on contract components completed, the enrollment of subjects, the completion of trials and other events. Costs incurred related to the purchase or licensing of in-process R&D for early-stage products or products that are not commercially viable and ready for use, or have no alternative future use, are charged to expense in the period incurred. Share-based Compensation Share-based compensation expense for stock options and restricted stock units (RSUs) granted to employees and directors is recognized in the consolidated statements of operations based on estimated amounts. The cost of stock options is measured at the grant date, based on the estimated fair value of the stock option using the Black-Scholes valuation model, which incorporates various assumptions including expected volatility, risk-free interest rate, the expected term of the award and the dividend yield on the underlying stock. Expected volatility is calculated based on the historical volatility of our stock over the expected option life and other appropriate factors. We use the simplified method to calculate the expected term of share options and similar instruments as we do not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term. Risk-free interest rates are calculated based on continuously compounded risk-free rates for the appropriate term. The dividend yield is assumed to be zero as we do not intend to do so in the foreseeable future. For RSUs, we estimate the grant date fair value using our closing stock price on the date of grant. The estimated fair value of stock options and RSUs is amortized over the requisite service period, adjusted for actual forfeitures at the time they occur. The requisite service period is generally the time over which our share-based awards vest. Interest and Dividend Income Interest on cash and investment balances is recognized when earned. Dividend income is recognized when the right to receive the payment is established. Income Taxes Our income tax expense consists of current and deferred income tax expense or benefit. Current income tax expense or benefit is the amount of income taxes expected to be payable or refundable for the current year. A deferred income tax asset or liability is recognized for the future tax consequences attributable to tax credits and loss carryforwards and to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that some portion or all of the deferred tax assets will not be realized. As of June 30, 2025 and 2024, we have established a valuation allowance to fully reserve our net deferred tax assets. Tax rate changes are reflected in income during the period such changes are enacted. Changes in our ownership may limit the amount of net operating loss carryforwards that can be utilized in the future to offset taxable income. The Financial Accounting Standards Board (FASB) Topic ASC 740 - Income Taxes prescribes a recogn ition threshold and measurement attribute criteria for the financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be more-likely-than-not to be sustained upon examination by taxing authorities. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained. There were no unrecognized tax benefits as of June 30, 2025 and 2024. Disposition of Non-Financial Assets The Company accounts for infrequent dispositions of assets in its product pipeline in accordance with ASC 610-20, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets, which requires dispositions of long-lived assets that are not a discontinued operation be accounted for on a net basis and included in income from continuing operations before income taxes in accordance with ASC 350, Intangible Assets - Goodwill and Other. Proceeds from sales designated as dispositions of non-financial assets are classified as cash flows from investing activities in the consolidated statements of cash flows. Net (Loss) Income Per Share Basic and diluted net (loss) income per share is computed using the weighted-average number of shares of Common Stock (as defined in Note 10. Stockholders' Equity) outstanding during the period, less any shares subject to repurchase or forfeiture. There were no shares of Common Stock (as defined in Note 10. Stockholders' Equity) subject to repurchase or forfeiture for the fiscal years ended June 30, 2025 and 2024. Diluted net (loss) income per share is computed based on the sum of the weighted-average number of common shares (as defined in Note 10. Stockholders' Equity) and potentially dilutive common shares outstanding during the period determined using the treasury-stock and if-converted methods. For purposes of the diluted net loss per share calculation for the fiscal year ended June 30, 2025, potentially dilutive securities are excluded from the calculation of diluted net loss per share because their effect was anti-dilutive due to our net loss. For purposes of the diluted net income per share calculation for the fiscal year ended June 30, 2024, potentially dilutive securities are excluded from the calculation of diluted net income per share because their weighted-average exercise prices were above our weighted-average share price. Therefore, basic and diluted net (loss) income per share were the same for the fiscal years ended June 30, 2025 and 2024. The following table presents potentially dilutive shares that have been excluded from the calculation of net (loss) income per share because of their anti-dilutive effect (in thousands):
|  | For the Fiscal Year Ended June 30, |
|  | 2025 |  |  | 2024 |
Stock options |  |  | 869 |  |  |  | 1,357 |
Warrants |  |  | 103 |  |  |  | 103 |
Total anti-dilutive shares |  |  | 972 |  |  |  | 1,460 |
Recent Accounting Pronouncement Recently Adopted In November 2023, the FASB issued Accounting Standards Update (ASU) No. 2023-07, Segment Reporting (Topic 280) Improvements to Reportable Segment Disclosures, which modifies the disclosure and presentation requirements of reportable segments (ASU 2023-07). The amendments in the update require the disclosure of significant segment expenses that are regularly provided to the chief operating decision maker (the CODM) and included within each reported measure of segment profit and loss. The amendments also require disclosure of all other segment items by reportable segment and a description of its composition. Additionally, the amendments require disclosure of the title and position of the CODM and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. Lastly, the amendment requires that a public entity that has a single reportable segment provide all the disclosures required by ASU 2023-07 and all existing segment disclosures in Topic 280. The adoption of ASU 2023-07 resulted in enhanced disclosures as included in Note 12 Segment Information, but did not impact to our results of operations, cash flows and financial condition. Recently Issued From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted as of the specified effective date. We believe the impact of recently issued standards, other than those noted below and any issued but not yet effective standards will not have a material impact on our consolidated financial statements upon adoption. In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which focuses on the rate reconciliation and income taxes paid. ASU No. 2023-09 requires a public business entity (PBE) to disclose, on an annual basis, a tabular rate reconciliation using both percentages and currency amounts, broken out into specified categories with certain reconciling items further broken out by nature and jurisdiction to the extent those items exceed a specified threshold. In addition, all entities are required to disclose income taxes paid, net of refunds received disaggregated by federal, state/local,and foreign and by jurisdiction if the amount is at least 5% of total income tax payments, net of refunds received. For PBEs, the new standard is effective for annual periods beginning after December 15, 2024, with early adoption permitted. An entity may apply the amendments in this ASU prospectively by providing the revised disclosures for the period ending December 31, 2025 and continuing to provide the pre-ASU disclosures for the prior periods, or may apply the amendments retrospectively by providing the revised disclosures for all periods presented. We expect this ASU to only impact our disclosures with no impacts to our results of operations, cash flows and financial condition. In January 2025, the FASB issued ASU No. 2025-01, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Clarifying the Effective Date. The amendment in this update clarifies the effective date of ASU 2024-03, which is that public business entities are required to adopt the guidance in annual reporting periods beginning after December 15, 2026 and in interim periods within annual reporting periods beginning after December 15, 2027. The impact of adoption of this ASU on our disclosures is currently being evaluated. In July 2025, the One Big Beautiful Bill Act (“OBBBA”) was enacted. The OBBBA makes permanent key elements of the Tax Cuts and Jobs Act of 2017, including 100% bonus depreciation, domestic research cost expensing and the business interest expense limitation, among other tax changes. Many of the tax provisions of the OBBBA are designed to accelerate tax deductions, which could lead to lower cash tax payments. The new legislation has multiple effective dates, with certain provisions effective in 2025 and others in the future. While we continue to assess the impact of the tax provisions of the OBBBA on our consolidated financial statements, we currently believe that the tax provisions of the legislation are not expected to have a material impact on our statement of operations.

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