BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) |
6 Months Ended |
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Jun. 30, 2026 | |
| Accounting Policies [Abstract] | |
| Basis of Accounting | The accompanying unaudited interim consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP) for interim financial periods and pursuant to the rules of the SEC. Any reference in the accompanying unaudited interim financial statements to “authoritative guidance” is meant to refer to GAAP as found in the Accounting Standards Codification (ASC) and Accounting Standards Updates (ASU) of the Financial Accounting Standards Board (FASB). The December 31, 2025 balance sheet was derived from the Company’s audited consolidated financial statements.
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| Principles of Consolidation | Principles of Consolidation The unaudited interim consolidated financial statements include the accounts of GRI Bio, Inc. and its wholly owned subsidiary, GRI Bio Operations, Inc. All intercompany balances and transactions have been eliminated.
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| Use of Estimates | Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting period. Estimates and assumptions are primarily made in relation to the valuation of share options, warrant issuance and subsequent revaluations, valuation allowances relating to deferred tax assets, accrued expenses and estimation of the incremental borrowing rate for the operating lease. If actual results differ from the Company’s estimates, or to the extent these estimates are adjusted in future periods, the Company’s consolidated results of operations could either benefit from, or be adversely affected by, any such change in estimate.
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| Fair Value Measurements | Fair Value Measurements Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. To increase consistency and comparability in fair value measurements and related disclosures, ASC 820, Fair Value Measurement (ASC 820), establishes a fair value hierarchy which prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The three levels of fair value hierarchy defined by ASC 820 are described below: Level 1: Quoted market prices available in active markets for identical assets or liabilities as of the reporting date. Level 2: Pricing inputs other than quoted prices in active markets included in Level 1, which are either directly or indirectly observable as of the reporting date. Level 3: Pricing inputs that are generally unobservable inputs and not corroborated by market data. As of June 30, 2026, the Company’s financial instruments included cash, cash equivalents, prepaid expenses and other current assets, accounts payable, accrued expenses and certain liability classified warrants. The carrying amounts reported in the consolidated balance sheets for cash, cash equivalents, prepaid expenses and other current assets, accounts payable and accrued expenses approximate their fair value based on the short-term maturity of these instruments. The Company recognizes transfers between levels of the fair value hierarchy on the date of the event or change in circumstances that caused the transfer. At June 30, 2026, there were no financial assets or liabilities measured at fair value on a recurring basis other than the liability classified warrants. In May 2022, Vallon Pharmaceuticals, Inc. (Vallon) issued warrants (the May 2022 Warrants) in connection with a securities purchase agreement. Vallon evaluated the May 2022 Warrants in accordance with ASC 815-40, Derivatives and Hedging — Contracts in Entity’s Own Equity (ASC 815-40), and concluded that a provision in the May 2022 Warrants related to the reduction of the exercise price in certain circumstances precluded the May 2022 Warrants from being accounted for as components of equity. As a result, the May 2022 Warrants were recorded as a liability on the consolidated balance sheet. Vallon recorded the fair value of the May 2022 Warrants upon issuance using a Black-Scholes valuation model. The Company is required to revalue the May 2022 Warrants at each reporting date with any changes in fair value recorded in its consolidated statements of operations. The valuation of the May 2022 Warrants is considered under Level 3 of the fair value hierarchy due to the need to use assumptions in the valuation that are both significant to the fair value measurement and unobservable. As of June 30, 2026 and December 31, 2025, the fair value of the warrant liability was immaterial.
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| Deferred Stock Issuance Costs | Deferred Stock Issuance Costs Deferred stock issuance costs represent incremental costs incurred that are directly attributable to proposed offerings of securities. The costs are charged against the gross proceeds of the respective offering upon closing.
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| Net Loss Per Common Share | Net Loss Per Common Share Basic net loss per common share is computed by dividing net loss by the weighted-average number of shares of common stock outstanding during each period. Diluted net loss per common share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during each period, plus the dilutive effect of common stock equivalents outstanding during each period, in accordance with ASC 260, Earnings Per Share. As the Company had a net loss in each of the three and six months ended June 30, 2026 and 2025, diluted net loss per common share is the same as basic net loss per common share for the periods because the effects of potentially dilutive securities are antidilutive.
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| Recent Accounting Pronouncements | Recent Accounting Pronouncements The Company considered the applicability and impact of all ASUs issued during the quarter ended June 30, 2026. ASUs not discussed below were assessed and determined to be either not applicable or expected to have minimal impact on these unaudited interim consolidated financial statements. In November 2024, FASB issued ASU 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40) (ASU 2024-03). The amendments in ASU 2024-03 require disclosure, in the notes to financial statements, of specified information about certain costs and expenses. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, for all public entities. Early adoption is permitted. Management is currently evaluating the impact of this update on the Company’s financial statements. In October 2023, FASB issued ASU 2023-06, Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative (ASU 2023-06). The amendments in ASU 2023-06 represent changes to clarify or improve disclosure and presentation requirements of a variety of topics in the Codification and align those requirements with the SEC’s regulation. For entities subject to the SEC’s existing disclosure requirements, the effective date for each amendment will be the date on which the SEC’s removal of that related disclosure from Regulation S-X or Regulation S-K becomes effective, with early adoption prohibited. For all entities, if by June 30, 2027, the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. Management is currently evaluating the impact of this update and its effective dates but does not expect the update to have a material effect on the Company’s financial statements.
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