3. Common Stock Offerings	9 Months Ended
Sep. 30, 2019
Business Combinations [Abstract]
Common Stock Offerings	3. Common Stock Offerings Securities Purchase Agreement On August 23, 2019, the Company entered into the Securities Purchase Agreement with certain institutional investors, pursuant to which the Company agreed to issue and sell an aggregate of 4,475,000 shares of common stock in a registered direct offering, resulting in total gross proceeds of approximately $6.7 million, before deducting the placement agents' fees and other estimated offering expenses. The shares were offered by the Company pursuant to the Company's shelf registration statement on Form S-3 filed with the SEC on November 2, 2017, as amended. The Company also agreed to issue to the investors unregistered warrants to purchase up to 2,237,500 shares of common stock in a concurrent private placement (the "August 2019 Warrants"). The August 2019 Warrants have an exercise price of $1.78 per share of common stock, will be exercisable six months from the date of issuance and will expire four years following the date of issuance. The combined purchase price for one share and one warrant to purchase half of a share of common stock in the offerings was $1.50. The closing of the offerings occurred on August 27, 2019. The Company also agreed, pursuant to the Securities Purchase Agreement, to file a registration statement on Form S-1 by November 21, 2019 to provide for the resale of the shares of common stock issuable upon the exercise of the August 2019 Warrants (the "Warrant Shares"), and will be obligated to use commercially reasonable efforts to keep such registration statement effective from the date the warrants initially become exercisable until the earlier of (i) the date on which the Warrant Shares may be sold without registration pursuant to Rule 144 under the Securities Act during any 90 day period, and (ii) the date on which no purchaser owns any warrants or Warrant Shares. On August 23, 2019, the Company also entered into a Placement Agency Agreement (the "Placement Agency Agreement") with Roth Capital Partners, LLC ("Roth"), pursuant to which Roth agreed to serve as the placement agent for the issuance and sale of the shares and the warrants, and the Company agreed to pay Roth an aggregate fee equal to 7.0% of the gross proceeds received by the Company in the offerings. The Placement Agency Agreement includes indemnity and other customary provisions for transactions of this nature. Equity Distribution Agreement On June 17, 2019, the Company entered into the Equity Distribution Agreement with Piper Jaffray, as sales agent, pursuant to which the Company may offer and sell, from time to time, through Piper Jaffray up to $50,000,000 in shares. Any shares offered and sold in the offering will be issued pursuant to the Company's shelf registration statement on Form S-3, the prospectus supplement relating to the offering filed with the SEC on June 17, 2019 and any applicable additional prospectus supplements related to the offering that form a part of the registration statement. The number of shares eligible for sale under the Equity Distribution Agreement will be subject to the limitations of General Instruction I.B.6 of Form S-3. Subject to the terms and conditions of the Equity Distribution Agreement, Piper Jaffray will use its commercially reasonable efforts to sell the shares from time to time, based upon the Company's instructions. Under the Equity Distribution Agreement, Piper Jaffray may sell the shares by any method permitted by law deemed to be an "at the market offering" as defined in Rule 415 promulgated under the Securities Act of 1933, as amended (the "Securities Act"), including sales made directly on Nasdaq or on any other existing trading market for the shares. Subject to the Company's prior written consent, Piper Jaffray may also sell shares by any other method permitted by law including, but not limited to, privately negotiated transactions. The Company has no obligation to sell any of the shares, and may at any time suspend offers under the Equity Distribution Agreement. The Offering will terminate upon the earlier of (i) the sale of all of the shares, or (ii) the termination of the Equity Distribution Agreement according to its terms by either the Company or Piper Jaffray. The Company and Piper Jaffray may each terminate the Equity Distribution Agreement at any time by giving advance written notice to the other party as required by the Equity Distribution Agreement. Under the terms of the Equity Distribution Agreement, Piper Jaffray will be entitled to a commission at a fixed rate of 3.0% of the gross proceeds from each sale of shares under the Equity Distribution Agreement. The Company will also reimburse Piper Jaffray for certain expenses incurred in connection with the Equity Distribution Agreement, and agreed to provide indemnification and contribution to Piper Jaffray with respect to certain liabilities, including liabilities under the Securities Act and the Securities Exchange Act of 1934, as amended (the "Exchange Act"). During the three and nine months ended September 30, 2019, the Company sold 1,197,676 shares for net proceeds of approximately $2.6 million pursuant to the Equity Distribution Agreement. On August 23, 2019, the Company suspended its continuous offering under the Equity Distribution Agreement. Pre-Merger Financing On January 24, 2019, Seelos Corporation and Apricus closed a private placement transaction with certain accredited investors (the "Investors"), whereby, among other things, Seelos Corporation issued to investors shares of the Company's common stock immediately prior to the Merger in a private placement transaction (the "Financing"), pursuant to the Securities Purchase Agreement, made and entered into as of October 16, 2018, by and among Seelos Corporation, Apricus and the investors, as amended (the "Purchase Agreement"). Pursuant to the Purchase Agreement, Seelos Corporation issued and sold to the Investors an aggregate of 2,374,672 shares of Seelos Corporation's common stock as converted pursuant to the exchange ratio in the Merger into the right to receive 1,829,407 shares of common stock and (ii) issued warrants representing the right to acquire 1,463,519 shares of common stock at a price per share of $4.15, subject to adjustment as provided therein (the "Series A Warrants"), and additional warrants initially representing the right to acquire no shares of common stock at a price per share of $0.001, subject to adjustment as provided therein (the "Series B Warrants" together with the Series A Warrants, the "Investor Warrants"), for aggregate gross proceeds of $18.0 million, or $16.5 million net of financing fees. The terms of the Investor Warrants included certain provisions that could result in adjustments to both the number of warrants issued and the exercise price of each warrant, which resulted in the warrants being classified as a liability upon issuance (see Note 7). The Investor Warrants were recorded at fair value of $21.5 million upon issuance and given the liability exceed the proceeds received, a loss of $5.0 million was recognized. On March 7, 2019, the Company entered into Amendment Agreements (collectively, the "Amendment Agreements") with each Investor amending: (i) the Purchase Agreement, (ii) the Series A Warrants, and (iii) the Series B Warrants. The Amendment Agreements, among other things, (i) fixed the aggregate number of shares of common stock issued and issuable pursuant to the Series B Warrants at 11,614,483 (which number includes shares of common stock issued pursuant to exercises of the Series B Warrants on or prior to March 7, 2019), (ii) fixed the aggregate number of shares of common stock issued and issuable pursuant to the Series A Warrants at 3,629,023 (none of which were exercised as of March 7, 2019), (iii) reduced the duration of the period during which the Investors were limited in the number of shares of common stock subject to the Series B Warrants that Investors can exercise on a daily basis, such that such period terminated on March 21, 2019, (iv) reduced the duration of the period during which the number of shares of common stock underlying the Series B Warrants would adjust based on the volume-weighted average price of the common stock, such that the adjustment period terminated on March 7, 2019, (v) fixed the "Reset Price" based on which the Series B Warrants adjusted on March 7, 2019 at $1.3389, (vi) amended the Purchase Agreement such that the date until which the Company was restricted from effecting certain variable rate transactions would be March 20, 2019, (vii) amended the Series A Warrants so that any references therein to the Series B Warrants refer to the Series B Warrants, as amended or restated from time to time, and (viii) made certain other technical, conforming and clarifying changes. The terms of the Investor Warrants continue to include certain provisions that could result in a future adjustment to the exercise price of the Investor Warrants and accordingly, they continue to be classified as a liability after the Amendment Agreements. Effective August 23, 2019, pursuant to the terms of the Series A Warrants, the exercise price of the Series A Warrants automatically decreased from $1.6736 per share to $0.9267 per share as a result of the announcement of the issuance of the August 2019 Warrants pursuant to the Securities Purchase Agreement. At September 30, 2019, 1.0 million Series A Warrants remain unexercised. All Series B Warrants were exercised during the nine months ended September 30, 2019.

3. Common Stock Offerings

9 Months Ended

Sep. 30, 2019

3. Common Stock Offerings

Securities Purchase Agreement

On August 23, 2019, the Company entered into the Securities Purchase Agreement with certain institutional investors, pursuant to which the Company agreed to issue and sell an aggregate of 4,475,000 shares of common stock in a registered direct offering, resulting in total gross proceeds of approximately $6.7 million, before deducting the placement agents' fees and other estimated offering expenses. The shares were offered by the Company pursuant to the Company's shelf registration statement on Form S-3 filed with the SEC on November 2, 2017, as amended. The Company also agreed to issue to the investors unregistered warrants to purchase up to 2,237,500 shares of common stock in a concurrent private placement (the "August 2019 Warrants"). The August 2019 Warrants have an exercise price of $1.78 per share of common stock, will be exercisable six months from the date of issuance and will expire four years following the date of issuance. The combined purchase price for one share and one warrant to purchase half of a share of common stock in the offerings was $1.50. The closing of the offerings occurred on August 27, 2019. The Company also agreed, pursuant to the Securities Purchase Agreement, to file a registration statement on Form S-1 by November 21, 2019 to provide for the resale of the shares of common stock issuable upon the exercise of the August 2019 Warrants (the "Warrant Shares"), and will be obligated to use commercially reasonable efforts to keep such registration statement effective from the date the warrants initially become exercisable until the earlier of (i) the date on which the Warrant Shares may be sold without registration pursuant to Rule 144 under the Securities Act during any 90 day period, and (ii) the date on which no purchaser owns any warrants or Warrant Shares. On August 23, 2019, the Company also entered into a Placement Agency Agreement (the "Placement Agency Agreement") with Roth Capital Partners, LLC ("Roth"), pursuant to which Roth agreed to serve as the placement agent for the issuance and sale of the shares and the warrants, and the Company agreed to pay Roth an aggregate fee equal to 7.0% of the gross proceeds received by the Company in the offerings. The Placement Agency Agreement includes indemnity and other customary provisions for transactions of this nature.

Equity Distribution Agreement

On June 17, 2019, the Company entered into the Equity Distribution Agreement with Piper Jaffray, as sales agent, pursuant to which the Company may offer and sell, from time to time, through Piper Jaffray up to $50,000,000 in shares. Any shares offered and sold in the offering will be issued pursuant to the Company's shelf registration statement on Form S-3, the prospectus supplement relating to the offering filed with the SEC on June 17, 2019 and any applicable additional prospectus supplements related to the offering that form a part of the registration statement. The number of shares eligible for sale under the Equity Distribution Agreement will be subject to the limitations of General Instruction I.B.6 of Form S-3. Subject to the terms and conditions of the Equity Distribution Agreement, Piper Jaffray will use its commercially reasonable efforts to sell the shares from time to time, based upon the Company's instructions. Under the Equity Distribution Agreement, Piper Jaffray may sell the shares by any method permitted by law deemed to be an "at the market offering" as defined in Rule 415 promulgated under the Securities Act of 1933, as amended (the "Securities Act"), including sales made directly on Nasdaq or on any other existing trading market for the shares. Subject to the Company's prior written consent, Piper Jaffray may also sell shares by any other method permitted by law including, but not limited to, privately negotiated transactions. The Company has no obligation to sell any of the shares, and may at any time suspend offers under the Equity Distribution Agreement. The Offering will terminate upon the earlier of (i) the sale of all of the shares, or (ii) the termination of the Equity Distribution Agreement according to its terms by either the Company or Piper Jaffray. The Company and Piper Jaffray may each terminate the Equity Distribution Agreement at any time by giving advance written notice to the other party as required by the Equity Distribution Agreement. Under the terms of the Equity Distribution Agreement, Piper Jaffray will be entitled to a commission at a fixed rate of 3.0% of the gross proceeds from each sale of shares under the Equity Distribution Agreement. The Company will also reimburse Piper Jaffray for certain expenses incurred in connection with the Equity Distribution Agreement, and agreed to provide indemnification and contribution to Piper Jaffray with respect to certain liabilities, including liabilities under the Securities Act and the Securities Exchange Act of 1934, as amended (the "Exchange Act"). During the three and nine months ended September 30, 2019, the Company sold 1,197,676 shares for net proceeds of approximately $2.6 million pursuant to the Equity Distribution Agreement. On August 23, 2019, the Company suspended its continuous offering under the Equity Distribution Agreement.

Pre-Merger Financing

On January 24, 2019, Seelos Corporation and Apricus closed a private placement transaction with certain accredited investors (the "Investors"), whereby, among other things, Seelos Corporation issued to investors shares of the Company's common stock immediately prior to the Merger in a private placement transaction (the "Financing"), pursuant to the Securities Purchase Agreement, made and entered into as of October 16, 2018, by and among Seelos Corporation, Apricus and the investors, as amended (the "Purchase Agreement").

Pursuant to the Purchase Agreement, Seelos Corporation issued and sold to the Investors an aggregate of 2,374,672 shares of Seelos Corporation's common stock as converted pursuant to the exchange ratio in the Merger into the right to receive 1,829,407 shares of common stock and (ii) issued warrants representing the right to acquire 1,463,519 shares of common stock at a price per share of $4.15, subject to adjustment as provided therein (the "Series A Warrants"), and additional warrants initially representing the right to acquire no shares of common stock at a price per share of $0.001, subject to adjustment as provided therein (the "Series B Warrants" together with the Series A Warrants, the "Investor Warrants"), for aggregate gross proceeds of $18.0 million, or $16.5 million net of financing fees. The terms of the Investor Warrants included certain provisions that could result in adjustments to both the number of warrants issued and the exercise price of each warrant, which resulted in the warrants being classified as a liability upon issuance (see Note 7). The Investor Warrants were recorded at fair value of $21.5 million upon issuance and given the liability exceed the proceeds received, a loss of $5.0 million was recognized.

On March 7, 2019, the Company entered into Amendment Agreements (collectively, the "Amendment Agreements") with each Investor amending: (i) the Purchase Agreement, (ii) the Series A Warrants, and (iii) the Series B Warrants. The Amendment Agreements, among other things, (i) fixed the aggregate number of shares of common stock issued and issuable pursuant to the Series B Warrants at 11,614,483 (which number includes shares of common stock issued pursuant to exercises of the Series B Warrants on or prior to March 7, 2019), (ii) fixed the aggregate number of shares of common stock issued and issuable pursuant to the Series A Warrants at 3,629,023 (none of which were exercised as of March 7, 2019), (iii) reduced the duration of the period during which the Investors were limited in the number of shares of common stock subject to the Series B Warrants that Investors can exercise on a daily basis, such that such period terminated on March 21, 2019, (iv) reduced the duration of the period during which the number of shares of common stock underlying the Series B Warrants would adjust based on the volume-weighted average price of the common stock, such that the adjustment period terminated on March 7, 2019, (v) fixed the "Reset Price" based on which the Series B Warrants adjusted on March 7, 2019 at $1.3389, (vi) amended the Purchase Agreement such that the date until which the Company was restricted from effecting certain variable rate transactions would be March 20, 2019, (vii) amended the Series A Warrants so that any references therein to the Series B Warrants refer to the Series B Warrants, as amended or restated from time to time, and (viii) made certain other technical, conforming and clarifying changes. The terms of the Investor Warrants continue to include certain provisions that could result in a future adjustment to the exercise price of the Investor Warrants and accordingly, they continue to be classified as a liability after the Amendment Agreements.

Effective August 23, 2019, pursuant to the terms of the Series A Warrants, the exercise price of the Series A Warrants automatically decreased from $1.6736 per share to $0.9267 per share as a result of the announcement of the issuance of the August 2019 Warrants pursuant to the Securities Purchase Agreement.

At September 30, 2019, 1.0 million Series A Warrants remain unexercised. All Series B Warrants were exercised during the nine months ended September 30, 2019.