Stock Issuance	9 Months Ended
Sep. 30, 2020
Stock Issuance [Abstract]
Stock Issuance	12. Stock Issuance Stock and Warrant Issuances – Equity Based Financings Private Placements with Accredited Investors In January 2020, we entered into securities purchase agreements with accredited investors for an aggregate of 1,169,232 shares of our common stock at a price of $0.13 per share and 166,667 shares of our common stock at $0.15 per share for aggregate proceeds of approximately $0.2 million. In March 2020, we entered into securities purchase agreements with accredited investors for an aggregate of 2,571,432 shares of our common stock at a price of $0.35 per share for aggregate proceeds of $0.9 million. The shares were registered for resale on a registration statement that was declared effective on April 28, 2020 (File No. 333-237762). The securities purchase agreements for the March 2020 transaction were amended on May 1, 2020, in order to add a contingent payment right whereby we will pay each investor an allocated portion of our share of proceeds from patent-related actions, after taking into account fees and expenses payable to law firms representing the Company and amounts payable to Brickell, up to an amount equal to the investors’ aggregate subscription amount, or $0.9 million. This amendment resulted in the recognition of $0.4 million in expense to recognize the initial fair value of the contingent payment right (see “unsecured contingent payment obligations” in Note 9). During the nine months ended September 30, 2020, we entered into securities purchase agreements with accredited investors for an aggregate of 5,871,584 shares of our common stock at a price of $0.35 per share for aggregate proceeds of $2.1 million. The securities purchase agreements include contingent payment rights. Approximately $1.0 million of the proceeds were allocated to unsecured contingent payment obligations based on the initial fair value estimate of the CPRs (see Note 9). The shares were registered for resale on a registration statement that was declared effective on September 2, 2020 (File No. 333-248242). Warrant Amendment with Aspire Capital On February 28, 2020, we entered into a warrant amendment agreement (the “Warrant Amendment Agreement”) with Aspire Capital Fund, LLC (“Aspire”), with respect to warrants issued in July and September 2018 (the “2018 Warrants”) that are exercisable, collectively, into 5,000,000 shares of our common stock. The Warrant Amendment Agreement provided for a reduction in the exercise price for the 2018 Warrants from $0.74 to $0.35 per share and the issuance of a new warrant for the purchase of 5,000,000 shares of our common stock at an exercise price of $0.74 per share (“New Aspire Warrant”). The New Aspire Warrant expires February 28, 2025 and is subject to adjustment in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting our common stock and also upon any distributions of assets to our stockholders. The New Aspire Warrant contains provisions that prohibit exercise if the holder, together with its affiliates, would beneficially own in excess of 9.99% of the number of shares of common stock outstanding immediately after giving effect to such exercise. The holder of the New Aspire Warrant may increase (up to 19.99%) or decrease this percentage by providing at least 61 days’ prior notice to the Company. In the event of certain corporate transactions, the holder of the New Aspire Warrant will be entitled to receive, upon exercise of such New Aspire Warrant, the kind and amount of securities, cash or other property that the holder would have received had they exercised the New Aspire Warrant immediately prior to such transaction. The New Aspire Warrant does not contain voting rights or any of the other rights or privileges as a holder of our common stock. The Warrant Amendment Agreement added a call provision to the 2018 Warrants whereby we may, after December 31, 2020, call for cancellation of all or any portion of the 2018 Warrants for which an exercise notice has not yet been received, in exchange for consideration equal to $0.001 per warrant share and subject to certain conditions, including the continued existence of an effective registration statement for the underlying shares of common stock and the availability of sufficient authorized shares to allow for the exercise of the 2018 Warrants. All other terms of the 2018 Warrants remained unchanged, including the original expiration dates of July and September 2023. In connection with the Warrant Amendment Agreement, Aspire exercised 1,430,000 shares of the 2018 Warrants for aggregate proceeds to us of $0.5 million. An additional 1,070,000 shares of the 2018 Warrants were exercised during the nine months ended September 30, 2020 for aggregate proceeds to us of $0.38 million. We recognized $1.78 million of non-cash warrant expense in connection with the Warrant Amendment Agreement based on the difference between the Black-Scholes value of the warrants immediately before and after the amendment. The shares underlying the New Aspire Warrant were registered for resale on a registration statement that was declared effective on April 28, 2020 (File No. 333-237762). The shares underlying the 2018 Warrants are currently registered for resale pursuant to a registration statement on Form S-1 (File No. 333-226738). Stock and Warrant Issuances – Payment for Services On February 10, 2020, we entered into a business consulting and retention agreement with Chelsea Investor Relations (“Chelsea”) to provide business advisory services to us. As consideration for services to be provided under the 24-month term of the consulting agreement, we issued 500,000 shares of unregistered common stock in exchange for a nonrefundable retainer for services valued at approximately $0.15 million. The value of the stock issued is being recognized as consulting expense over the term of the agreement. The shares were registered for resale on a registration statement that was declared effective on April 28, 2020 (File No. 333-237762). On March 16, 2020, we entered into an agreement with Tailwinds Research Group LLC (“Tailwinds”) to provide digital marketing services to us. As consideration for services to be provided under the twelve-month term of the agreement, we issued warrants for the purchase up to 200,000 shares of our common stock with an exercise price of $1.00 per share in exchange for a nonrefundable retainer for services, valued using the Black-Scholes method, at approximately $0.06 million. The value of the warrants is being recognized as expense over the term of the agreement. The Tailwinds warrants are exercisable immediately after issuance, expire March 16, 2023, and are subject to adjustment in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting our common stock. The shares underlying the warrant were registered for resale on a registration statement that was declared effective on April 28, 2020 (File No. 333-237762). On June 8, 2020, we entered into an agreement with a third party to provide media advisory services. As consideration for services to be provided under the term of the agreement, which extends through December 31, 2020, we issued 30,000 shares of unregistered common stock for a nonrefundable retainer for services valued at approximately $0.01 million. The value of the stock issued is being recognized as a consulting expense over the term of the agreement. We are not obligated to register the shares for resale. In July 2020, we issued 50,000 shares of our unregistered common stock, valued at approximately $0.03 million, as compensation for shareholder awareness services provided by a third party during the second quarter of 2020. The agreement provides for future issuances of 50,000 shares for up to three successive three-month periods over the term of the agreement, unless the services are terminated in accordance with the agreement. In October 2020, we issued an additional 50,000 shares of our unregistered common stock, valued at approximately $0.02 million, as compensation for services provided by this third party during the third quarter of 2020. Common Stock Warrants As of September 30, 2020, we had outstanding warrants for the purchase of up to 13.9 million shares of our common stock. The estimated grant date fair value of these warrants of $2.0 million is included in Additional Paid-in Capital in our condensed consolidated balance sheets. As of September 30, 2020, our outstanding warrants have an average exercise price of $0.44 per share and a weighted average remaining life of approximately 3.3 years.

12. Stock Issuance

Stock and Warrant Issuances – Equity Based Financings

Private Placements with Accredited Investors

In January 2020, we entered into securities purchase agreements with accredited investors for an aggregate of 1,169,232 shares of our common stock at a price of $0.13 per share and 166,667 shares of our common stock at $0.15 per share for aggregate proceeds of approximately $0.2 million. In March 2020, we entered into securities purchase agreements with accredited investors for an aggregate of 2,571,432 shares of our common stock at a price of $0.35 per share for aggregate proceeds of $0.9 million. The shares were registered for resale on a registration statement that was declared effective on April 28, 2020 (File No. 333-237762).

The securities purchase agreements for the March 2020 transaction were amended on May 1, 2020, in order to add a contingent payment right whereby we will pay each investor an allocated portion of our share of proceeds from patent-related actions, after taking into account fees and expenses payable to law firms representing the Company and amounts payable to Brickell, up to an amount equal to the investors’ aggregate subscription amount, or $0.9 million. This amendment resulted in the recognition of $0.4 million in expense to recognize the initial fair value of the contingent payment right (see “unsecured contingent payment obligations” in Note 9).

During the nine months ended September 30, 2020, we entered into securities purchase agreements with accredited investors for an aggregate of 5,871,584 shares of our common stock at a price of $0.35 per share for aggregate proceeds of $2.1 million. The securities purchase agreements include contingent payment rights. Approximately $1.0 million of the proceeds were allocated to unsecured contingent payment obligations based on the initial fair value estimate of the CPRs (see Note 9). The shares were registered for resale on a registration statement that was declared effective on September 2, 2020 (File No. 333-248242).

Warrant Amendment with Aspire Capital

On February 28, 2020, we entered into a warrant amendment agreement (the “Warrant Amendment Agreement”) with Aspire Capital Fund, LLC (“Aspire”), with respect to warrants issued in July and September 2018 (the “2018 Warrants”) that are exercisable, collectively, into 5,000,000 shares of our common stock. The Warrant Amendment Agreement provided for a reduction in the exercise price for the 2018 Warrants from $0.74 to $0.35 per share and the issuance of a new warrant for the purchase of 5,000,000 shares of our common stock at an exercise price of $0.74 per share (“New Aspire Warrant”). The New Aspire Warrant expires February 28, 2025 and is subject to adjustment in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting our common stock and also upon any distributions of assets to our stockholders. The New Aspire Warrant contains provisions that prohibit exercise if the holder, together with its affiliates, would beneficially own in excess of 9.99% of the number of shares of common stock outstanding immediately after giving effect to such exercise. The holder of the New Aspire Warrant may increase (up to 19.99%) or decrease this percentage by providing at least 61 days’ prior notice to the Company. In the event of certain corporate transactions, the holder of the New Aspire Warrant will be entitled to receive, upon exercise of such New Aspire Warrant, the kind and amount of securities, cash or other property that the holder would have received had they exercised the New Aspire Warrant immediately prior to such transaction. The New Aspire Warrant does not contain voting rights or any of the other rights or privileges as a holder of our common stock.

The Warrant Amendment Agreement added a call provision to the 2018 Warrants whereby we may, after December 31, 2020, call for cancellation of all or any portion of the 2018 Warrants for which an exercise notice has not yet been received, in exchange for consideration equal to $0.001 per warrant share and subject to certain conditions, including the continued existence of an effective registration statement for the underlying shares of common stock and the availability of sufficient authorized shares to allow for the exercise of the 2018 Warrants. All other terms of the 2018 Warrants remained unchanged, including the original expiration dates of July and September 2023. In connection with the Warrant Amendment Agreement, Aspire exercised 1,430,000 shares of the 2018 Warrants for aggregate proceeds to us of $0.5 million. An additional 1,070,000 shares of the 2018 Warrants were exercised during the nine months ended September 30, 2020 for aggregate proceeds to us of $0.38 million. We recognized $1.78 million of non-cash warrant expense in connection with the Warrant Amendment Agreement based on the difference between the Black-Scholes value of the warrants immediately before and after the amendment. The shares underlying the New Aspire Warrant were registered for resale on a registration statement that was declared effective on April 28, 2020 (File No. 333-237762). The shares underlying the 2018 Warrants are currently registered for resale pursuant to a registration statement on Form S-1 (File No. 333-226738).

Stock and Warrant Issuances – Payment for Services

On February 10, 2020, we entered into a business consulting and retention agreement with Chelsea Investor Relations (“Chelsea”) to provide business advisory services to us. As consideration for services to be provided under the 24-month term of the consulting agreement, we issued 500,000 shares of unregistered common stock in exchange for a nonrefundable retainer for services valued at approximately $0.15 million. The value of the stock issued is being recognized as consulting expense over the term of the agreement. The shares were registered for resale on a registration statement that was declared effective on April 28, 2020 (File No. 333-237762).

On March 16, 2020, we entered into an agreement with Tailwinds Research Group LLC (“Tailwinds”) to provide digital marketing services to us. As consideration for services to be provided under the twelve-month term of the agreement, we issued warrants for the purchase up to 200,000 shares of our common stock with an exercise price of $1.00 per share in exchange for a nonrefundable retainer for services, valued using the Black-Scholes method, at approximately $0.06 million. The value of the warrants is being recognized as expense over the term of the agreement. The Tailwinds warrants are exercisable immediately after issuance, expire March 16, 2023, and are subject to adjustment in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting our common stock. The shares underlying the warrant were registered for resale on a registration statement that was declared effective on April 28, 2020 (File No. 333-237762).

On June 8, 2020, we entered into an agreement with a third party to provide media advisory services. As consideration for services to be provided under the term of the agreement, which extends through December 31, 2020, we issued 30,000 shares of unregistered common stock for a nonrefundable retainer for services valued at approximately $0.01 million. The value of the stock issued is being recognized as a consulting expense over the term of the agreement. We are not obligated to register the shares for resale.

In July 2020, we issued 50,000 shares of our unregistered common stock, valued at approximately $0.03 million, as compensation for shareholder awareness services provided by a third party during the second quarter of 2020. The agreement provides for future issuances of 50,000 shares for up to three successive three-month periods over the term of the agreement, unless the services are terminated in accordance with the agreement. In October 2020, we issued an additional 50,000 shares of our unregistered common stock, valued at approximately $0.02 million, as compensation for services provided by this third party during the third quarter of 2020.

Common Stock Warrants

As of September 30, 2020, we had outstanding warrants for the purchase of up to 13.9 million shares of our common stock. The estimated grant date fair value of these warrants of $2.0 million is included in Additional Paid-in Capital in our condensed consolidated balance sheets. As of September 30, 2020, our outstanding warrants have an average exercise price of $0.44 per share and a weighted average remaining life of approximately 3.3 years.