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Stockholders Equity | 9 Months Ended
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Sep. 30, 2021
Stockholders' Equity [Abstract] |
Stockholders Equity | 9. Stockholders Equity August 2021 Controlled Equity Offering Sales Agreement On August 12, 2021, the Company entered into a Controlled Equity Offering Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co. ("Cantor"), pursuant to which it may issue and sell, from time to time, shares of its common stock having an aggregate offering price of up to $50.0 million through Cantor as the sales agent. Cantor may sell the Company’s common stock by any method permitted by law deemed to be an “at the market offering” as defined in Rule 415(a)(4) of the Securities Act. ​ Subject to the terms and conditions of the Sales Agreement, Cantor will use commercially reasonable efforts consistent with its normal trading and sales practices to sell shares of the Company’s common stock from time to time, based upon the Company's instructions, including any price, time or size limits specified by the Company. The Company has provided Cantor with customary indemnification rights, and Cantor will be entitled to a commission at a fixed rate equal to 3.0% of the gross proceeds per share sold. The Company has no obligation to sell any of the shares and may at any time suspend sales under the Sales Agreement or terminate the Sales Agreement. The Sales Agreement will terminate upon the sale of all of the shares under the Sales Agreement unless terminated earlier by either party as permitted under the Sales Agreement. ​ During the three and nine months ended September 30, 2021, the Company sold 563,625 shares under the Sales Agreement for net proceeds of approximately $3.0 million. An additional 170,800 shares have been sold subsequent to September 30, 2021 for net proceeds of approximately $0.9 million. ​ March 2021 Equity Financing On March 12, 2021, the Company entered into an Underwriting Agreement (the “Underwriting Agreement”) with Oppenheimer & Co. Inc., as representative of the underwriters identified therein (collectively, the “Underwriters”), pursuant to which the Company agreed to issue and sell 1,807,143 shares of common stock, $0.001 par value per share, at a public offering price of $7.00 per share (the “Offering”) along with a 30-day overallotment option to purchase up to an additional 271,071 shares of common stock at the public offering price, less underwriting discounts and commissions. ​ The closing of the offering occurred on March 16, 2021, and the net proceeds to the Company (including exercise of the over-allotment option) were approximately $13.5 million, after deducting placement agent fees and other offering expenses payable by the Company. December 2020 Equity Financing On December 18, 2020, the Company entered into a Securities Purchase Agreement (the “Purchase Agreement”) with Acorn Bioventures, LP (the “Purchaser”), pursuant to which the Company agreed to offer, issue and sell to the Purchaser, (i) in a registered direct offering, (a) an aggregate of 485,912 shares (the “Common Shares”) of common stock, par value $0.001 per share (“Common Stock”), and (b) an aggregate of 237,745 shares of Series B Convertible Preferred Stock (the “Preferred Shares,” and collectively with the Common Shares, the “Shares”), par value $0.001 per share (“Series B Preferred Stock”), and (ii) in a concurrent private placement, warrants (the “Warrants”) to purchase up to an aggregate of 669,854 shares (the “Warrant Shares”) of Common Stock. The combined purchase price for each Share, together with one Warrant to purchase 0.4 shares of Common Stock, is $4.18. Each Warrant shall be exercisable beginning on the 12-month anniversary of the date of issuance for a period of five years after the date of issuance, at an exercise price of $4.13 per Warrant Share. The exercise price of the Warrants will be subject to adjustment in the event of any stock dividends and splits, reverse stock split, recapitalization, reorganization or similar transaction, as described in the Warrants. The Warrants may be exercised on a “cashless” basis. Each share of Series B Convertible Preferred Stock will convert into five shares of Common Stock. The conversion feature within the Series B Convertible Preferred Stock was determined to be beneficial as of the offering date. A beneficial conversion feature is defined as a nondetachable conversion feature that is "in-the-money" at issuance. The Company calculated the value of the beneficial conversion feature based on its intrinsic value, which is the difference between the “effective conversion price” (after allocating the proceeds of the offering between the Series B Convertible Preferred Stock, the Warrants and Common Stock issued) and the market price of the Company's common shares, multiplied by the number of shares into which the Series B Convertible Preferred Stock is convertible. The effective conversion price of $3.18 per share is different from the $4.18 per share contractual conversion price. As the series B Preferred Stock contained no stated redemption date and the conversion feature could be exercised at any time, the discount associated with the beneficial conversion feature was immediately charged against additional paid-in-capital and treated as a deemed dividend for both financial reporting and earnings per share purposes. The common stock, Warrants and Series B Preferred Stock are freestanding financial instruments. The Warrants are classified within equity (as a component of additional paid-in capital) in the consolidated balance sheet and are not remeasured on a recurring basis. The Series B Preferred Stock is classified within permanent equity in the consolidated balance sheet. The closing of the offering occurred on December 22, 2020 and the net proceeds to the Company were approximately $6.9 million, after deducting offering expenses payable by the Company. As of September 30, 2021, 237,745 shares of the Series B Preferred Stock remained issued and outstanding. April 2020 Equity Financing On April 21, 2020, the Company entered into a co-placement agency agreement with Roth Capital Partners, LLC, Ladenburg Thalmann & Co. Inc., and Brookline Capital Markets, a division of Arcadia Securities, LLC (the “Co-Placement Agents”) and a securities purchase agreement with certain purchasers for the purchase and sale of (i) 1,910,000 shares of common stock, (ii) pre-funded warrants to purchase up to 2,090,000 shares of common stock at an exercise price of $0.001 per share, and (iii) accompanying common stock warrants to purchase up to 4,000,000 shares of common stock at an exercise price of $5.00 per share. The shares of common stock and accompanying common stock warrants were sold at a combined public offering price of $5.00 per share and common stock warrant. Each common stock warrant sold with the shares of common stock represents the right to purchase one share of common stock at an exercise price of $5.00 per share. The common stock warrants are exercisable immediately and expire five years from the date of issuance. The pre-funded warrants and accompanying common stock warrants were sold at a combined public offering price of $4.999 per pre-funded warrant and common stock warrant. The pre-funded warrants were sold to purchasers whose purchase of shares of common stock in the public offering would otherwise result in the purchaser, together with its affiliates and certain related parties, beneficially owning more than 4.99% (or, at the election of the purchaser, 9.99%) of the Company’s outstanding common stock immediately following the consummation of the public offering, in lieu of shares of common stock. Each pre-funded warrant represents the right to purchase one share of the Company’s common stock at an exercise price of $0.001 per share. The pre-funded warrants are exercisable immediately and may be exercised at any time until the pre-funded warrants are exercised in full. The shares of common stock and pre-funded warrants, and accompanying common stock warrants, were issued separately and are immediately separable upon issuance. ​ The closing of the offering occurred on April 24, 2020, and the net proceeds to the Company were approximately $18.3 million, after deducting placement agent fees and other offering expenses payable by the Company. ​ Subsequent to the closing of the offering, all of the pre-funded warrants issued in connection therewith were converted into 2,090,000 shares of common stock. ​ Warrants December 2020 Warrants As of September 30, 2021, warrants to purchase 669,854 shares of common stock remained outstanding. Each warrant shall be exercisable beginning on the 12-month anniversary of the date of issuance for a period of five years after the date of issuance, at an exercise price of $4.13 per Warrant Share. The exercise price of the Warrants will be subject to adjustment in the event of any stock dividends and splits, reverse stock split, recapitalization, reorganization or similar transaction, as described in the warrants. The warrants may be exercised on a “cashless” basis. There were no exercises of these warrants during the three and nine months ended September 30, 2021. April 2020 Warrants As of September 30, 2021, 2,190,000 warrants issued in connection with the April 2020 equity financing remained outstanding, each with an exercise price of $5.00. All such warrants were issued in connection with the April 2020 co-placement agency agreement. The common warrants are immediately exercisable and will expire on the fifth anniversary of the original issuance date. The exercise price and number of shares of common stock issuable upon exercise is subject to appropriate adjustment in the event of stock dividends, stock splits, reorganizations or similar events affecting the Company’s common stock. The common warrants were issued separately from the common stock and were eligible for transfer immediately after issuance. A common warrant to purchase one share of common stock was issued for every share of common stock purchased in this offering. The common warrants are exercisable, at the option of each holder, in whole or in part, by delivering to the Company a duly executed exercise notice accompanied by payment in full for the number of shares of the Company’s common stock purchased upon such exercise (except in the case of a cashless exercise). A holder (together with its affiliates) may not exercise any portion of the common warrant to the extent that the holder would own more than 4.99% of the outstanding common stock immediately after exercise, except that upon at least 61 days prior notice from the holder to the Company, the holder may increase the amount of ownership of outstanding stock after exercising the holder’s common warrants up to 9.99% of the number of shares of the Company’s common stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the common warrants. No fractional shares of common stock will be issued in connection with the exercise of a common warrant. In lieu of fractional shares, the Company will round down to the next whole share. A total of 909,000 warrants were exercised during the nine months ended September 30, 2021. July 2017 Warrants As of September 30, 2021, 374,525 warrants issued in connection with the July 2017 underwritten public offering remained outstanding, each with an exercise price of $40.00. All such warrants were issued in connection with the July 2017 underwritten public offering and are immediately exercisable. The warrants expire in 2024. Subject to limited exceptions, a holder of warrants will not have the right to exercise any portion of its warrants if the holder (together with such holder’s affiliates, and any persons acting as a group together with such holder or any of such holder’s affiliates) would beneficially own a number of shares of common stock in excess of 4.99% (or, at the election of the purchaser, 9.99%) of the shares of our Common Stock then outstanding after giving effect to such exercise. The exercise price and the number of shares issuable upon exercise of the warrants is subject to appropriate adjustment in the event of recapitalization events, stock dividends, stock splits, stock combinations, reclassifications, reorganizations or similar events affecting the Company’s common stock. The warrant holders must pay the exercise price in cash upon exercise of the warrants, unless such warrant holders are utilizing the cashless exercise provision of the warrants. On the expiration date, unexercised warrants will automatically be exercised via the “cashless” exercise provision. Prior to the exercise of any warrants to purchase common stock, holders of the warrants will not have any of the rights of holders of the common stock purchasable upon exercise, including the right to vote, except as set forth therein. There were no exercises of these warrants during the three and nine months ended September 30, 2021. Series A Preferred Stock 8,872 shares of the Company’s Series A Preferred Stock were issued in the July 2017 underwritten public offering. During the year ended December 31, 2017, 8,608 shares of the Series A Preferred Stock were converted into 215,200 shares of common stock. As of September 30, 2021, 264 shares of the Series A Preferred Stock remained issued and outstanding which are convertible into 6,600 shares of common stock. Each share of Series A Preferred Stock is convertible at any time at the option of the holder thereof, into a number of shares of common stock determined by dividing $1,000 by the initial conversion price of $40.00 per share, subject to a 4.99% blocker provision, or, upon election by a holder prior to the issuance of shares of Series A Preferred Stock, 9.99%, and is subject to adjustment for stock splits, stock dividends, distributions, subdivisions and combinations. The 264 shares of Series A Preferred Stock issued and outstanding at September 30, 2021, are convertible into 6,600 shares of common stock. In the event of a liquidation, the holders of shares of the Series A Preferred Stock shall be permitted to participate on an as-converted-to-common-stock basis in any distribution of assets of the Company. The Company shall not pay any dividends on shares of common stock (other than dividends in the form of common stock) unless and until such time as dividends on each share of Series A Preferred Stock are paid on an as-converted basis. There is no restriction on the Company’s ability to repurchase shares of Series A Preferred Stock while there is any arrearage in the payment of dividends on such shares, and there are no sinking fund provisions applicable to the Series A Preferred Stock. Subject to certain conditions, at any time following the issuance of the Series A Preferred Stock, the Company has the right to cause each holder of the Series A Preferred Stock to convert all or part of such holder’s Series A Preferred Stock in the event that (i) the volume weighted average price of our common stock for 30 consecutive trading days (the “Measurement Period”) exceeds 300% of the initial conversion price of the Series A Preferred Stock (subject to adjustment for forward and reverse stock splits, recapitalizations, stock dividends and similar transactions), (ii) the daily trading volume on each Trading Day during such Measurement Period exceeds $500,000 per trading day and (iii) the holder is not in possession of any information that constitutes or might constitute, material non-public information which was provided by the Company. The right to cause each holder of the Series A Preferred Stock to convert all or part of such holder’s Series A Preferred Stock shall be exercised ratably among the holders of the then outstanding preferred stock. The Series A Preferred Stock has no maturity date, will carry the same dividend rights as the common stock, and with certain exceptions, contains no voting rights. In the event of any liquidation or dissolution of the Company, the Series A Preferred Stock ranks senior to the common stock in the distribution of assets, to the extent legally available for distribution. 6% Convertible Exchangeable Preferred Stock As of September 30, 2021, there were 335,273 shares of the Company’s 6% Convertible Exchangeable Preferred Stock (the “6% Preferred Stock”) issued and outstanding at an issue price of $10.00 per share. Dividends on the 6% Preferred Stock are cumulative from the date of original issuance at the annual rate of 6% of the liquidation preference of the 6% Preferred Stock, payable quarterly on the first day of February, May, August and November, commencing February 1, 2005. Any dividends must be declared by the Company’s board of directors and must come from funds that are legally available for dividend payments. The 6% Preferred Stock has a liquidation preference of $10.00 per share, plus accrued and unpaid dividends. As of September 30, 2021, accrued and unpaid dividends amounted to $50,291. The Company may automatically convert the 6% Preferred Stock into common stock if the per share closing price of the Company’s common stock has exceeded $59,220, which is 150% of the conversion price of the 6% Preferred Stock, for at least 20 trading days during any 30 day trading period, ending within five trading days prior to notice of automatic conversion. The 6% Preferred Stock has no maturity date and no voting rights prior to conversion into common stock, except under limited circumstances. The Company may, at its option, redeem the 6% Preferred Stock in whole or in part, out of funds legally available at the redemption price of $10.00 per share. The 6% Preferred Stock is exchangeable, in whole but not in part, at the option of the Company on any dividend payment date beginning on November 1, 2005 (the “Exchange Date”) for the Company’s 6% Convertible Subordinated Debentures (the “Debentures”) at the rate of $10.00 principal amount of Debentures for each share of 6% Preferred Stock. The Debentures, if issued, will mature 25 years after the Exchange Date and have substantially similar terms to those of the 6% Preferred Stock. No such exchanges have taken place to date.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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