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Consolidated Statements of Operations and Comprehensive Loss (USD $)
In Thousands, except Share data, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Income Statement [Abstract] | |||
| Revenue | $ 0us-gaap_Revenues | $ 0us-gaap_Revenues | $ 0us-gaap_Revenues |
| Operating expenses: | |||
| Research and development | 27,391us-gaap_ResearchAndDevelopmentExpense | 9,561us-gaap_ResearchAndDevelopmentExpense | 11,544us-gaap_ResearchAndDevelopmentExpense |
| General and administrative | 8,141us-gaap_GeneralAndAdministrativeExpense | 4,219us-gaap_GeneralAndAdministrativeExpense | 2,247us-gaap_GeneralAndAdministrativeExpense |
| Total operating expenses | 35,532us-gaap_OperatingExpenses | 13,780us-gaap_OperatingExpenses | 13,791us-gaap_OperatingExpenses |
| Loss from operations | (35,532)us-gaap_OperatingIncomeLoss | (13,780)us-gaap_OperatingIncomeLoss | (13,791)us-gaap_OperatingIncomeLoss |
| Other income (expense): | |||
| Interest income | 28us-gaap_InvestmentIncomeNet | ||
| Interest expense | (870)us-gaap_InterestExpense | (97)us-gaap_InterestExpense | |
| Foreign currency transaction gains (losses), net | (104)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | (247)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 8us-gaap_ForeignCurrencyTransactionGainLossBeforeTax |
| Total other income (expense), net | (946)us-gaap_NonoperatingIncomeExpense | (247)us-gaap_NonoperatingIncomeExpense | (89)us-gaap_NonoperatingIncomeExpense |
| Net loss | (36,478)us-gaap_NetIncomeLoss | (14,027)us-gaap_NetIncomeLoss | (13,880)us-gaap_NetIncomeLoss |
| Accretion of redeemable convertible preferred stock to redemption value | (92)us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment | (213)us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment | (67)us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment |
| Net loss attributable to common stockholders | (36,570)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | (14,240)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | (13,947)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |
| Net loss per share attributable to common stockholders, basic and diluted | $ (3.00)us-gaap_EarningsPerShareBasicAndDiluted | $ (19.53)us-gaap_EarningsPerShareBasicAndDiluted | $ (19.65)us-gaap_EarningsPerShareBasicAndDiluted |
| Weighted average common shares outstanding, basic and diluted | 12,189,155us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 729,001us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 709,678us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted |
| Comprehensive loss: | |||
| Net loss | (36,478)us-gaap_NetIncomeLoss | (14,027)us-gaap_NetIncomeLoss | (13,880)us-gaap_NetIncomeLoss |
| Other comprehensive loss: | |||
| Unrealized loss on marketable securities | (35)us-gaap_MarketableSecuritiesUnrealizedGainLoss | ||
| Total other comprehensive loss | (35)us-gaap_OtherComprehensiveIncomeLossNetOfTax | ||
| Total comprehensive loss | $ (36,513)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | $ (14,027)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest | $ (13,880)us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest |
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- Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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- Definition
Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate net change in the difference between the fair value and the carrying value, or in the comparative fair values, of marketable securities categorized as trading held at each balance sheet date, that was included in earnings for the period, which may have arisen from (a) securities classified as trading, (b) the unrealized holding gain (loss) on held-to-maturity securities transferred to the trading security category, and (c) the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) on available-for-sale securities transferred to trading securities during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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The net result for the period of deducting operating expenses from operating revenues. No definition available.
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- Definition
Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of decrease to net income for accretion of temporary equity to its redemption value to derive net income apportioned to common stockholders. No definition available.
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- Definition
Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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