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Stockholders' Equity | 12 Months Ended
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Dec. 31, 2019
Stockholders' Equity Note [Abstract] |
Stockholders Equity | 10. Stockholders’ Equity The Company has completed the following equity issuances during the periods presented in the consolidated financial statements. October 2018 At Market Issuance On October 4, 2018, the Company entered into a Common Stock Sales Agreement, or the Sales Agreement, with H.C. Wainwright & Co., LLC, or Wainwright, as sales agent, pursuant to which Wainwright was permitted to sell shares of our common stock, par value $0.001 per share, having an aggregate offering price of up to $5,000,000, by any method that is deemed to be an “at the market offering” as defined in Rule 415 promulgated under the Securities Act of 1933, as amended. Shares sold under the Sales Agreement were offered and sold pursuant to the Company’s previously filed and effective Registration Statement on Form S‑3 and a prospectus supplement and accompanying base prospectus. The Company paid Wainwright a commission of 3.0% of the gross sales price per share sold. The Sales Agreement was concluded during the first quarter of 2019, and thus terminated by its terms. Pursuant to the Sales Agreement, the Company sold an aggregate 5,202,527 shares for net proceeds of approximately $4.7 million, after deducting commissions and other expenses. July 2017 Underwritten Public Offering On July 21, 2017, the Company issued (i) 3,154,000 Class A Units for $2 per unit, each consisting of one share of the Company’s common stock, and a warrant to purchase one share of common stock, or Class A Warrants, and (ii) 8,872 Class B Units, each consisting of one share of the Company’s Series A Convertible Preferred Stock, par value $0.001 per share, or Series A Preferred Stock, convertible into 500 shares of Common Stock at the initial conversion price, and a warrant to purchase a number of shares of common stock equal to $1,000.00 divided by the conversion price, or Class B Warrants for $1,000 per unit. The net proceeds to the Company after the underwriters’ exercise in full of the over-allotment option were approximately $13.7 million, after deducting underwriting discounts, commissions and other estimated offering expenses. The Class A Units and Class B Units have no stand-alone rights and the shares of common stock, Series A Preferred Stock and the Class A and Class B Warrants comprising those units were immediately separable. The common stock, Class A Warrants and Class B Warrants (together the “Warrants”) and Series A 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 A Preferred Stock is classified within permanent equity in the consolidated balance sheet. The following is a description of the Company’s outstanding equity instruments. Warrants As of December 31, 2018 and 2019, there were 7,490,500 warrants outstanding, each with an exercise price of $2.00. 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 warrants exercised during each of the years ended December 31, 2018 and 2019. Series A Preferred Stock 8,872 shares of the Company’s Series A Preferred Stock were issued in the July 2017 Underwritten Public Offering. 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  $2.00 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. During the year ended December 31, 2017, 8,608 shares of the Series A Preferred Stock were converted into 4,304,000 shares of common stock. As of December 31, 2018 and 2019, 264 shares of the Series A Preferred Stock remain issued and outstanding. The 264 shares of Series A Preferred Stock issued and outstanding at December 31, 2019, are convertible into 132,000 shares of common stock. In the event of a liquidation, the holders of shares of the Series A Preferred Stock may 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, or 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 December 31, 2018 and 2019, there were 335,273 shares of the Company’s 6% Convertible Exchangeable, or Preferred Stock issued and outstanding at an issue price of $10.00 per share. Dividends on the Preferred Stock are cumulative from the date of original issuance at the annual rate of 6% of the liquidation preference of the 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 Preferred Stock has a liquidation preference of $10.00 per share, plus accrued and unpaid dividends. The Company’s Board of Directors considers numerous factors in determining whether to declare the quarterly dividend pursuant to the Certificate of Designations governing the terms of the Company’s Preferred Stock, including the requisite financial analysis and determination of a surplus. Accumulated but unpaid dividends in arrears on preferred stock were $0.7 million, or $1.95 per share, of preferred stock, as of December 31, 2018 and 2019. The Preferred Stock is convertible at the option of the holder at any time into the Company’s shares of common stock at a conversion rate of approximately 0.00507 shares of common stock for each share of Preferred Stock based on a price of $1,974. The Company has reserved 1,698 shares of common stock for issuance upon conversion of the remaining shares of Preferred Stock outstanding at December 31, 2019. The shares of previously-converted Preferred Stock have been retired, cancelled and restored to the status of authorized but unissued shares of preferred stock, subject to reissuance by the Board of Directors as shares of Preferred Stock of one or more series. The Company may automatically convert the Preferred Stock into common stock if the closing price of the Company’s common stock has exceeded $2,961, which is 150% of the conversion price of the 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 Certificate of Designations governing the Preferred Stock provides that if the Company fails to pay dividends on its Preferred Stock for six quarterly periods, holders of Preferred Stock are entitled to nominate and elect two directors to the Company’s Board of Directors. This right accrued to the holders of Preferred Stock as of August 2, 2010 and two directors were nominated and elected at the annual meeting held on May 24, 2011. The 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 Preferred Stock in whole or in part, out of funds legally available at the redemption price of $10.00 per share. The 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, or Exchange Date for the Company’s 6% Convertible Subordinated Debentures, or Debentures at the rate of $10.00 principal amount of Debentures for each share of Preferred Stock. The Debentures, if issued, will mature 25 years after the Exchange Date and have terms substantially similar to those of the Preferred Stock. No such exchanges have taken place as of December 31, 2019. For the year ended December 31, 2019, the company declared dividends of $0.15 per share quarterly on its Preferred Stock. These dividends were paid on May 1, August 1 and November 1, 2019, and February 1, 2020, respectively.

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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://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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