Common Stock and Stockholders’ Equity | ( 12 ) Common Stock and Stockholders’ Equity: Reverse Stock Split On March 4, 2014, the Company effected a 1-for-35 reverse stock split of its common stock, whereby each share of common stock, $0.001 par value, outstanding immediately prior to that date was combined, reclassified and changed into one thirty-fifth (1/35) of a fully paid and non-assessable share of common stock. The accompanying financial statements and notes to the financial statements give retroactive effect to the reverse split for all periods presented. Common Stock On April 1, 2014, the Company completed its IPO in which it sold 4,166,667 shares of common stock at a price of $12.00 per share. The shares began trading on the Nasdaq Global Select Market on March 27, 2014. An additional 625,000 shares were sold pursuant to the exercise of the underwriters’ over-allotment option, also at the offering price of $12.00 per share. The aggregate net proceeds received by the Company from the offering, including exercise of the over-allotment option, amounted to $51.6 million, net of underwriting discounts and commissions and other issuance costs incurred by the Company. Upon the closing of the IPO, all outstanding shares of convertible preferred stock converted into 9,120,081 shares of common stock; and warrants exercisable for convertible preferred stock were automatically converted into warrants exercisable for 49,811 shares of common stock, resulting in the reclassification of the related convertible preferred stock warrant liability of $551 thousand to additional paid-in capital. On July 30, 2014, the Company completed a public offering in which the Company sold 2,000,000 shares of common stock at a public offering price of $15.00 per share. On August 1, 2014, the Company sold an additional 300,000 shares of common stock at a public offering price of $15.00 per share pursuant to the full exercise of an overallotment option granted to the underwriters in connection with the public offering that was completed in July 2014. The aggregate net proceeds received by the Company from the offering, including the exercise of the overallotment option, amounted to $32.0 million, net of underwriting discounts and commissions. As of June 30, 2015, there were 150,000,000 shares of $0.001 par value common stock that were authorized to be issued. As of that date, a total of 16,490,654 shares of common stock were issued, of which 16,475,654 shares were outstanding. The following shares of common stock were reserved for future issuance as of June 30, 2015: In thousands June 30, 2015 Common stock warrants 30 Stock options issued and outstanding 1,484 Authorized for future grant under the 2013 Employee Stock Purchase Plan 129 Authorized for future grant under the 2013 Equity and Incentive Plan 1,161 2,804 Former Series B purchase rights In November 2012, the Company entered into a Series B-1, B-2 and B-3 Preferred Stock Purchase Agreement, or Series B Purchase Agreement, which authorized the sale of up to 290,781,972 shares of convertible preferred stock in three separate tranches of Series B-1, Series B-2 and Series B-3 preferred stock, respectively. Simultaneously with the execution of the Series B Purchase Agreement, the Company issued and sold an aggregate of 66,147,709 shares of Series B-1 preferred stock at a price per share of $0.1297. The Series B Purchase Agreement provided that the holders of the Series B-1 shares, or Series B holders, were also entitled to purchase up to an aggregate of 140,542,178 shares of Series B-2 preferred stock for an aggregate purchase price equal to $18.2 million, or second tranche, and up to an aggregate of 82,670,167 shares of Series B-3 preferred stock for an aggregate purchase price equal to $10.7 million, or third tranche. The price per share and number of shares to be issued in exchange for such amount was to be determined separately for each tranche by reference to which, if any, of three milestones specified in the agreement had been satisfied by the Company. The purchase rights were legally separable and exercisable apart from the Series B-1 shares and, because representatives of the Series B holders held a majority of the seats on the board of directors, the decision to complete the second and third tranche was deemed to be outside the Company’s control. The Company therefore recorded, at the time of entry into the Series B Purchase Agreement, a Series B purchase rights liability of $1.7 million for the fair value of its obligation to sell the Series B-2 and Series B-3 preferred stock in the second and third tranche. The Series B purchase rights liability was valued separately for each series using the Black-Scholes option-pricing method to assign a value to the purchase right relating to that series under each of the possible applicable valuation scenarios, depending on which milestones were met, with each scenario being assigned an estimated probability as of the valuation date. The aggregate of these probability-weighted valuations was assigned as the value of the purchase right for each tranche. The initial fair value of the Series B purchase rights liability was estimated to be $0.6 million for the second tranche and $1.1 million for the third tranche. The total value allocated to the Series B purchase rights reduced the amount allocated to the carrying value of the Series B-1 preferred stock on the Company’s balance sheet. The most significant and judgmental inputs driving the fair value of the Company’s Series B purchase rights were the assumptions regarding the fair value of the underlying preferred shares and the volatility factor. With all other inputs constant, an increase or decrease in the assumed fair value of the preferred shares would have resulted in a higher or lower estimate of the fair value of the Series B purchase rights, respectively, although there would not have been a direct correlation. Similarly, an increase or decrease in the assumed volatility factor would have resulted in a higher or lower estimate of the fair value of the Series B purchase rights, respectively. In April 2013, following the satisfaction by the Company of the first milestone, the Series B holders exercised their rights with respect to the second tranche and purchased an aggregate of 122,749,639 shares of Series B-2 preferred stock at a price per share of $0.1485, for gross cash proceeds of $18.2 million. During fiscal year 2013, the Company recorded a change in value of the Series B purchase rights liability of $1.2 million to other expense and the $0.8 million balance of the value allocated to the Series B-2 purchase rights liability immediately prior to the closing of the second tranche was recorded as proceeds from the issuance of the Series B-2 preferred stock. In October 2013, the Series B holders exercised their rights with respect to the third tranche and on November 5, 2013, the Company sold to the Series B holders an aggregate of 58,816,897 shares of its Series B-3 preferred stock at a price per share of $0.1823 (or $6.38 on an as-converted to common stock basis), for gross cash proceeds of $10.7 million. In connection with the closing of the third tranche, the Company and the Series B holders amended the terms of the Series B purchase agreement to provide that if the two remaining milestones specified in the Series B Purchase Agreement were not satisfied by September 2014, the Series B holders who continued to hold shares of Series B-3 preferred stock would be entitled to receive an aggregate of approximately 13,387,000 additional shares of Series B-3 preferred stock. This right was extinguished upon the conversion to common stock of all the outstanding shares of preferred stock upon closing of the Company’s initial public offering. During the year ended June 30, 2014, the Company recorded a change in value of the Series B purchase right liability of $2.9 million to other expense, and $5.0 million allocated to the Series B-3 purchase right immediately prior to the closing of the third tranche was reallocated to the carrying value of the Series B-3 preferred stock. In connection with the consummation of the Company’s IPO on April 1, 2014, all Series A Preferred Stock and Series B Preferred Stock converted into 9,120,081 shares of common stock on that date. As a result, none of the convertible series of preferred stock were issued or outstanding at June 30, 2015 and 2014. Former warrant liabilities As of June 30, 2013, the Company had warrants outstanding to purchase shares of its Series A-1, Series A-1A and Series B-1 preferred stock. Because the Series A-1, Series A-1A and Series B-1 preferred stock were subject to redemption under circumstances outside of the Company’s control, the outstanding shares of these series of preferred stock were presented as temporary equity for those periods. Consequently, the warrants to purchase shares of Series A-1, Series A-1A and Series B-1 preferred stock were accounted for as liabilities and adjusted to fair value at the end of each reporting period. The fair value of the warrants classified as liabilities was estimated using the Black-Scholes option pricing model. The estimates in the Black-Scholes option pricing model were based, in part, on subjective assumptions, including stock price volatility, term of the warrants, risk free interest rate, dividend yield, and fair value of the preferred stock underlying the warrants. The gain or loss associated with the change in the fair value of the preferred stock warrant liability from the prior period was recognized as a component of other (expense) income, net. The fair value of the warrants on the date of issuance, and on each financial reporting date for those warrants classified as liabilities, was estimated using the Black-Scholes option pricing model. Upon the closing of the Company’s initial public offering, these warrants were converted into warrants exercisable for common stock. |