Note 1 - Organization	12 Months Ended
Dec. 31, 2024
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	NOTE 1. ORGANIZATION NovaBay Pharmaceuticals, Inc. (the “*Company” or “our,” “we,” or “us”) has historically been focused on the development and sale of scientifically-created and clinically-proven eyecare, wound care, and skin care products. We have undergone significant changes to our business and operations as a result of a series of completed transactions summarized below. Following the closing of each of these transactions, we have significantly reduced our business operations and currently have limited sources of future revenue. As a result of completing each of the transaction discussed below, we have significantly reduced our business operations and currently have limited sources of future revenue generation. Our Company was historically focused on the development and sale of scientifically-created and clinically-proven eyecare, wound care, and skin care products. The Avenova Assets were our leading products formulated with our proprietary, stable and pure form of hypochlorous acid and were cleared by the FDA for sale in the United States. As described in additional detail below, subsequent to December 31, 2024, on January 17, 2025, we completed the Avenova Asset Sale. See additional discussion under the section “Recent Developments and Stock Exchange Listing” and subheading “Avenova Asset Sale” below. Our primary continuing operations were focused on our eyecare products during each of the years ended December 31, 2024 and 2023. However, as described further below, on September 19, 2024, the Company entered into the Purchase Agreement with PRN, pursuant to which PRN agreed to acquire the Avenova Assets, which transaction constituted the sale of substantially all of our revenue generating and operating assets. Subsequent to December 31, 2024, we completed the Avenova Asset Sale on January 17, 2025. See additional information about the Avenova Asset Sale in Note 12, “Avenova Asset Sale and Bridge Note” and Note 23, “Subsequent Events.” The Company was incorporated under the laws of the State of California on January 19, 2000, as NovaCal Pharmaceuticals, Inc. It had no operations until July 1, 2002, on which date it acquired all of the operating assets of NovaCal Pharmaceuticals, LLC, a California limited liability company. In February 2007, the Company changed its name from NovaCal Pharmaceuticals, Inc. to NovaBay Pharmaceuticals, Inc. In June 2010, the Company changed the state in which it was incorporated pursuant to the Reincorporation and is now incorporated under the laws of the State of Delaware. All references to “the Company” herein refer to the California corporation prior to the date of the Reincorporation and to the Delaware corporation on and after the date of the Reincorporation. The Company is managed as one reportable segment, eyecare and wound care. On May 30, 2024, the Company effected the Reverse Stock Split. Except as otherwise specifically noted, all share numbers, share prices, exercise/conversion prices and per share amounts have been adjusted, on a retroactive basis, to reflect the Reverse Stock Split. Held-for-Sale Assets* We historically manufactured and sold a proprietary form of hypochlorous acid for the wound care market under the NeutroPhase and PhaseOne brands. Our wound care products were used for cleansing and irrigation as part of surgical procedures, as well as treating wounds, burns, ulcers and other injuries. Subsequent to December 31, 2024, on January 8, 2025, we completed the Wound Care Divestiture to Phase One. Following the Wound Care Divestiture, we are continuing to manufacture our wound care products under remaining contractual obligations to our distribution partner in China. We anticipate fulfilling these obligations by the end of the second quarter of 2025. See additional information about the Wound Care Trademarks and the Wound Care Divestiture in Note 22, “Wound Care Divestiture and Held-for-Sale Assets.” *Discontinued Operations* Through our former subsidiary DERMAdoctor, the Company also offered over 30 dermatologist-developed products targeting common skin concerns, ranging from aging and blemishes to dry skin, perspiration and keratosis pilaris. On March 25, 2024, we announced that we had completed the DERMAdoctor Divestiture. See additional information about DERMAdoctor and the DERMAdoctor Divestiture in Note 21, “DERMAdoctor Divestiture and Discontinued Operations.” *Plan of Dissolution* The Board unanimously approved the Avenova Asset Sale as described above and further determined at the same time that, if the Avenova Asset Sale was completed, that the best opportunity available to maximize the remaining value for our Company and to our stockholders was to wind-up the Company’s affairs and pursue the Dissolution pursuant to the Plan of Dissolution that may result in distributions to our stockholders of our remaining asset value, if any remains. The Avenova Asset Sale and the Dissolution were presented to stockholders at the 2024 Special Meeting that was originally convened on November 22, 2024 and was subsequently adjourned and finally reconvened on January 30, 2025. At the 2024 Special Meeting reconvened on January 16, 2025, we received stockholder approval for the Avenova Asset Sale; however, we did not receive the requisite vote of stockholders representing a majority of the outstanding shares of our common stock to approve the Dissolution. The Avenova Asset Sale was completed subsequent to December 31, 2024 on January 17, 2025. With the Company having completed the sale of substantially all of its assets in the Avenova Asset Sale and sold all of its wound care inventory to Phase One in the Wound Care Divestiture, the Board, upon further analysis of the best opportunity to maximize the remaining value for the Company and its stockholders, among the other alternatives currently available, determined that it is in the best interest of the Company and its stockholders for the Company to continue pursuing the voluntary Dissolution pursuant to the Plan of Dissolution. The ability of the Company to proceed with the Dissolution under Delaware law is subject to the Company first receiving stockholder approval. Accordingly, the Company intends to hold the New Special Meeting of stockholders where the Company’s stockholders will be asked to, among other items, consider and approve the Dissolution pursuant to the Plan of Dissolution. If the Company’s stockholders approve the Dissolution on April 16, 2025, and the Board determines to proceed with the Dissolution, then the Company would consider liquidation to be imminent and apply the liquidation basis of accounting pursuant to the accounting principles generally accepted in the United States (“*U.S. GAAP”). See additional discussion in Note 23, “Subsequent Events.” Liquidity* Based on our funds available on December 31, 2024, as well as net proceeds of approximately $10.5 million from the Avenova Asset Sale that was completed on January 17, 2025, management believes that the Company’s existing cash and cash equivalents will be sufficient to enable the Company to meet its planned operating expenses at least through April 2, 2026. However, there is uncertainty with respect to our strategic direction, as the Dissolution is subject to stockholder approval and we are also exploring other potential strategic alternatives that may be available to us, and, as a result, when we do pursue our strategic direction, there may be unknown or potential future claims and liabilities that may arise or changing circumstances that may cause the Company to expend cash significantly faster than currently anticipated because of factors beyond its control.

Note 1 - Organization

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

NOTE 1. ORGANIZATION

NovaBay Pharmaceuticals, Inc. (the “Company” or “our,” “we,” or “us”) has historically been focused on the development and sale of scientifically-created and clinically-proven eyecare, wound care, and skin care products. We have undergone significant changes to our business and operations as a result of a series of completed transactions summarized below. Following the closing of each of these transactions, we have significantly reduced our business operations and currently have limited sources of future revenue.

As a result of completing each of the transaction discussed below, we have significantly reduced our business operations and currently have limited sources of future revenue generation. Our Company was historically focused on the development and sale of scientifically-created and clinically-proven eyecare, wound care, and skin care products. The Avenova Assets were our leading products formulated with our proprietary, stable and pure form of hypochlorous acid and were cleared by the FDA for sale in the United States. As described in additional detail below, subsequent to December 31, 2024, on January 17, 2025, we completed the Avenova Asset Sale. See additional discussion under the section “Recent Developments and Stock Exchange Listing” and subheading “Avenova Asset Sale” below.

Our primary continuing operations were focused on our eyecare products during each of the years ended December 31, 2024 and 2023. However, as described further below, on September 19, 2024, the Company entered into the Purchase Agreement with PRN, pursuant to which PRN agreed to acquire the Avenova Assets, which transaction constituted the sale of substantially all of our revenue generating and operating assets. Subsequent to December 31, 2024, we completed the Avenova Asset Sale on January 17, 2025. See additional information about the Avenova Asset Sale in Note 12, “Avenova Asset Sale and Bridge Note” and Note 23, “Subsequent Events.”

The Company was incorporated under the laws of the State of California on January 19, 2000, as NovaCal Pharmaceuticals, Inc. It had no operations until July 1, 2002, on which date it acquired all of the operating assets of NovaCal Pharmaceuticals, LLC, a California limited liability company. In February 2007, the Company changed its name from NovaCal Pharmaceuticals, Inc. to NovaBay Pharmaceuticals, Inc. In June 2010, the Company changed the state in which it was incorporated pursuant to the Reincorporation and is now incorporated under the laws of the State of Delaware. All references to “the Company” herein refer to the California corporation prior to the date of the Reincorporation and to the Delaware corporation on and after the date of the Reincorporation. The Company is managed as one reportable segment, eyecare and wound care.

On May 30, 2024, the Company effected the Reverse Stock Split. Except as otherwise specifically noted, all share numbers, share prices, exercise/conversion prices and per share amounts have been adjusted, on a retroactive basis, to reflect the Reverse Stock Split.

Held-for-Sale Assets

We historically manufactured and sold a proprietary form of hypochlorous acid for the wound care market under the NeutroPhase and PhaseOne brands. Our wound care products were used for cleansing and irrigation as part of surgical procedures, as well as treating wounds, burns, ulcers and other injuries. Subsequent to December 31, 2024, on January 8, 2025, we completed the Wound Care Divestiture to Phase One. Following the Wound Care Divestiture, we are continuing to manufacture our wound care products under remaining contractual obligations to our distribution partner in China. We anticipate fulfilling these obligations by the end of the second quarter of 2025. See additional information about the Wound Care Trademarks and the Wound Care Divestiture in Note 22, “Wound Care Divestiture and Held-for-Sale Assets.”

Discontinued Operations

Through our former subsidiary DERMAdoctor, the Company also offered over 30 dermatologist-developed products targeting common skin concerns, ranging from aging and blemishes to dry skin, perspiration and keratosis pilaris. On March 25, 2024, we announced that we had completed the DERMAdoctor Divestiture. See additional information about DERMAdoctor and the DERMAdoctor Divestiture in Note 21, “DERMAdoctor Divestiture and Discontinued Operations.”

Plan of Dissolution

The Board unanimously approved the Avenova Asset Sale as described above and further determined at the same time that, if the Avenova Asset Sale was completed, that the best opportunity available to maximize the remaining value for our Company and to our stockholders was to wind-up the Company’s affairs and pursue the Dissolution pursuant to the Plan of Dissolution that may result in distributions to our stockholders of our remaining asset value, if any remains. The Avenova Asset Sale and the Dissolution were presented to stockholders at the 2024 Special Meeting that was originally convened on November 22, 2024 and was subsequently adjourned and finally reconvened on January 30, 2025. At the 2024 Special Meeting reconvened on January 16, 2025, we received stockholder approval for the Avenova Asset Sale; however, we did not receive the requisite vote of stockholders representing a majority of the outstanding shares of our common stock to approve the Dissolution. The Avenova Asset Sale was completed subsequent to December 31, 2024 on January 17, 2025. With the Company having completed the sale of substantially all of its assets in the Avenova Asset Sale and sold all of its wound care inventory to Phase One in the Wound Care Divestiture, the Board, upon further analysis of the best opportunity to maximize the remaining value for the Company and its stockholders, among the other alternatives currently available, determined that it is in the best interest of the Company and its stockholders for the Company to continue pursuing the voluntary Dissolution pursuant to the Plan of Dissolution.

The ability of the Company to proceed with the Dissolution under Delaware law is subject to the Company first receiving stockholder approval. Accordingly, the Company intends to hold the New Special Meeting of stockholders where the Company’s stockholders will be asked to, among other items, consider and approve the Dissolution pursuant to the Plan of Dissolution. If the Company’s stockholders approve the Dissolution on April 16, 2025, and the Board determines to proceed with the Dissolution, then the Company would consider liquidation to be imminent and apply the liquidation basis of accounting pursuant to the accounting principles generally accepted in the United States (“U.S. GAAP”). See additional discussion in Note 23, “Subsequent Events.”

Liquidity

Based on our funds available on December 31, 2024, as well as net proceeds of approximately $10.5 million from the Avenova Asset Sale that was completed on January 17, 2025, management believes that the Company’s existing cash and cash equivalents will be sufficient to enable the Company to meet its planned operating expenses at least through April 2, 2026. However, there is uncertainty with respect to our strategic direction, as the Dissolution is subject to stockholder approval and we are also exploring other potential strategic alternatives that may be available to us, and, as a result, when we do pursue our strategic direction, there may be unknown or potential future claims and liabilities that may arise or changing circumstances that may cause the Company to expend cash significantly faster than currently anticipated because of factors beyond its control.