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Capital Stock | 12 Months Ended
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Dec. 31, 2019
Stockholders Equity Note [Abstract] |
Capital Stock | 14. Capital Stock Convertible Preferred Stock Rights Offering 2019 On December 2, 2019, the Company commenced a rights offering to raise up to $22.0 million through the distribution of subscription rights to holders of its common stock, Series X preferred stock and Series Y preferred stock (the “2019 Rights Offering”). In December 2019, the Company sold a total of 1,000,000 shares of common stock under the 2019 Rights Offering for aggregate gross proceeds of $22.0 million. Total offering costs of $0.2 million were offset against the proceeds from the sale of common stock, for total net proceeds of $21.8 million. The 2019 Rights Offering was fully backstopped by Biotechnology Value Fund, L.P. (“BVF”). In total, BVF purchased 845,463 shares of common stock and the Company will pay approximately $18,000 for BVF’s reasonable legal fees and expenses in connection with the 2019 Rights Offering. One of the Company’s Directors, Matthew Perry, is the President of BVF. Each share of common stock has a stated value of $22.00 per share. As of December 31, 2019, BVF owned approximately 27.1% of the Company’s total outstanding shares of common stock, and if all of the Series X and Series Y convertible preferred shares were converted, BVF would own 55.6% of the Company’s total outstanding shares of common stock. Due to its significant equity ownership, BVF is considered a related party of the Company. Rights Offering 2018 On November 19, 2018, the Company initiated a rights offering to raise $20.0 million through the distribution of subscription rights to holders of its common stock and Series X preferred stock (the “2018 Rights Offering”). In December 2018, the Company sold a total of 285,689 shares of common stock and 1,252.772 shares of Series Y preferred stock under the 2018 Rights Offering for aggregate gross proceeds of $20.0 million. Total offering costs of $0.3 million were offset against the proceeds from the sale of common stock and preferred stock, for total net proceeds of $19.7 million. All Series Y convertible preferred shares were issued to BVF. Each share of Series Y convertible preferred stock has a stated value of $13,000 per share and is convertible into 1,000 shares of registered common stock based on a conversion price of $13.00 per share of common stock. The total number of shares of common stock issued upon conversion of all issued Series Y convertible preferred stock will be 1,252,772 shares. Each share is convertible at the option of the holder at any time, provided that the holder will be prohibited from converting into common stock if, as a result of such conversion, the holder, together with its affiliates, would beneficially own a number of shares above a conversion blocker, which is initially set at 19.99% of the total common stock then issued and outstanding immediately following the conversion of such shares. A holder of Series X or Y preferred shares may elect to increase or decrease the conversion blocker above or below 19.99% on 61 days’ notice, provided the conversion blocker does not exceed the limits under Nasdaq Marketplace Rule 5635(b), to the extent then applicable. Preferred Stock The Series X and Series Y convertible preferred stock have the following characteristics, which are set forth in Certificates of Designation of Preferences, Rights and Limitations filed with the Delaware Secretary of State. Dividends— Holders of convertible preferred stock are entitled to receive dividends on shares of convertible preferred stock equal (on an as if converted to common stock basis) to and in the same form as dividends actually paid on the Company’s common stock. Liquidation Rights— In the event of the Company’s liquidation, dissolution or winding up, holders of convertible preferred stock will participate, on a pro-rata basis, with any distribution of proceeds to holders of common stock. Conversion— Each share of Series X and Series Y is convertible into 1,000 shares of registered common stock based on a conversion price of $4.03 per share and $13.00 per share of common stock, respectively. Voting Rights— Convertible preferred stock will generally have no voting rights, except as required by law and except that the consent of the holders of the outstanding convertible preferred stock will be required to amend the terms and to issue additional shares of the preferred stock. Classification— The Company evaluated the convertible preferred stock for liability or equity classification under the applicable accounting guidance and determined that equity treatment was appropriate because the convertible preferred stock did not meet the definition of the liability instruments defined thereunder for convertible instruments. Specifically, the convertible preferred shares are not mandatorily redeemable and do not embody an obligation to buy back the shares outside of the Company’s control in a manner that could require the transfer of assets. Additionally, the Company determined that the convertible preferred stock would be recorded as permanent equity, not temporary equity, given that they are not redeemable for cash or other assets (i) on a fixed or determinable date, (ii) at the option of the holder, and (iii) upon the occurrence of an event that is not solely within control of the Company. The Company has also evaluated the embedded conversion and contingent redemption features within the convertible preferred stock in accordance with the accounting guidance for derivatives and determined that bifurcation is not required for any embedded feature. Beneficial Conversion Feature— The fair value of the common stock into which the Series X convertible preferred stock is convertible exceeded the allocated purchase price of the Series X convertible preferred stock by $5.6 million on the date of issuance, as such the Company recorded a deemed dividend. The Company recognized the resulting beneficial conversion feature as a deemed dividend equal to the number of shares of Series X convertible preferred stock sold on February 16, 2017 multiplied by the difference between the fair value of the common stock and the Series X convertible preferred stock effective conversion price per share on that date. The dividend was reflected as a one-time, non-cash, deemed dividend to the holders of Series X convertible preferred stock on the date of issuance, which is the date the stock first became convertible. There was no beneficial conversion feature associated with the issuance of Series Y convertible preferred stock. 2018 ATM Agreement On December 18, 2018, the Company entered into an At The Market Issuance Sales Agreement (the “2018 ATM Agreement”) with H.C. Wainwright & Co., LLC (“HCW”), under which the Company may offer and sell from time to time at its sole discretion shares of its common stock through HCW as its sales agent, in an aggregate amount not to exceed $30.0 million. HCW may sell the shares by any method permitted by law deemed to be an “at the market” offering as defined in Rule 415 of the Securities Act, and will use its commercially reasonable efforts consistent with its normal trading and sales practices to sell the shares up to the amount specified. The Company will pay HCW a commission of 3% of the gross proceeds of any shares of common stock sold under the 2018 ATM Agreement. The Company has not sold any shares of common stock under the 2018 ATM Agreement. Common Stock Warrants As of December 31, 2019 and 2018, the following common stock warrants were outstanding:
|  |  |  |  |  | Exercise Price |  | December 31, |  | December 31,
Issuance Date |  | Expiration Date |  | Balance Sheet Classification |  | per Share |  | 2019 |  | 2018
February 2015 |  | February 2020 |  | Stockholders’ equity |  | $ | 66.20 |  | 9,063 |  | 9,063
February 2016 |  | February 2021 |  | Stockholders’ equity |  | $ | 15.40 |  | 8,249 |  | 8,249
May 2018 |  | May 2028 |  | Stockholders’ equity |  | $ | 23.69 |  | 6,332 |  | 6,332
March 2019 |  | March 2029 |  | Stockholders’ equity |  | $ | 14.71 |  | 4,845 |  | —
|  |  |  |  |  |  |  |  | 28,489 |  | 23,644
In February 2015, the Company issued Hercules Technology Growth Capital, Inc. (“Hercules”) a five-year warrant that entitles Hercules to purchase up to an aggregate of 9,063 unregistered shares of the Company’s common stock at an exercise price equal to $66.20 per share. The warrant was issued in connection with a term loan that was repaid in full in 2017. The warrant is classified in stockholders’ equity on the consolidated balance sheets. As of December 31, 2019, no shares have been issued upon exercise of the warrant. In February 2016, in conjunction with services provided by a third-party consultant, the Company issued a warrant to purchase up to an aggregate of 8,249 unregistered shares of the Company’s common stock at an exercise price equal to $15.40 per share. The warrant is exercisable immediately and has a five-year term expiring in February 2021. The estimated fair value of the warrant of $0.1 million was calculated using the Black-Scholes Model and was classified in stockholders’ equity on the consolidated balance sheet. As of December 31, 2018, no shares have been issued upon exercise of the warrant. In May 2018, the Company issued SVB a warrant in connection with the SVB Loan Agreement (see Note 9) which is exercisable in whole or in part for up to an aggregate of 6,332 shares of common stock with an exercise price of $23.69 per share. The warrant may be exercised on a cashless basis and is exercisable within 10 years from the date of issuance or upon the consummation of certain acquisitions of the Company. The fair value of the warrant issued to SVB was determined using the Black-Scholes Model and was estimated to be $0.1 million. The warrant is classified in stockholders’ equity on the consolidated balance sheets. In March 2019, the Loan Agreement was amended to extend the Draw Period from March 31, 2019 to March 31, 2020. In connection with the amendment, the Company issued a second warrant to SVB which is exercisable in whole or in part for up to an aggregate of 4,845 shares of common stock with an exercise price of $14.71 per share. The second warrant may be exercised on a cashless basis and is exercisable within 10 years from the date of issuance or upon the consummation of certain acquisitions of the Company. The fair value of the second warrant issued to SVB was determined using the Black-Scholes Model and was estimated to be $0.1 million. As of December 31, 2019, both warrants are outstanding and no shares have been issued upon exercise of the warrants.

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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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