|
Consolidated Statements of Operations and Comprehensive Loss (USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Income Statement [Abstract] | |||
| Revenue | $ 14,722us-gaap_ContractsRevenue | $ 12,495us-gaap_ContractsRevenue | $ 5,867us-gaap_ContractsRevenue |
| Operating expenses: | |||
| Research and development | 35,832us-gaap_ResearchAndDevelopmentExpense | 29,334us-gaap_ResearchAndDevelopmentExpense | 18,786us-gaap_ResearchAndDevelopmentExpense |
| General and administrative | 10,141us-gaap_GeneralAndAdministrativeExpense | 9,185us-gaap_GeneralAndAdministrativeExpense | 7,080us-gaap_GeneralAndAdministrativeExpense |
| Total operating expenses | 45,973us-gaap_OperatingExpenses | 38,519us-gaap_OperatingExpenses | 25,866us-gaap_OperatingExpenses |
| Loss from operations | (31,251)us-gaap_OperatingIncomeLoss | (26,024)us-gaap_OperatingIncomeLoss | (19,999)us-gaap_OperatingIncomeLoss |
| Interest income (expense), net | 121us-gaap_InterestIncomeExpenseNonoperatingNet | 136us-gaap_InterestIncomeExpenseNonoperatingNet | 80us-gaap_InterestIncomeExpenseNonoperatingNet |
| Other income (expense), net | 9,344us-gaap_GainLossOnDerivativeInstrumentsNetPretax | (2,325)us-gaap_GainLossOnDerivativeInstrumentsNetPretax | (51,216)us-gaap_GainLossOnDerivativeInstrumentsNetPretax |
| Income (loss) before provision for income taxes | (21,786)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | (28,213)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | (71,135)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |
| Provision (benefit) for income taxes | (202)us-gaap_IncomeTaxExpenseBenefit | 202us-gaap_IncomeTaxExpenseBenefit | |
| Net loss | (21,584)us-gaap_NetIncomeLoss | (28,415)us-gaap_NetIncomeLoss | (71,135)us-gaap_NetIncomeLoss |
| Other comprehensive income (loss): | |||
| Unrealized gain (loss) on available for sale securities | (41)us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax | 17us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax | 12us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax |
| Comprehensive loss | $ (21,625)us-gaap_ComprehensiveIncomeNetOfTax | $ (28,398)us-gaap_ComprehensiveIncomeNetOfTax | $ (71,123)us-gaap_ComprehensiveIncomeNetOfTax |
| Net loss per common share: | |||
| Basic | $ (0.36)us-gaap_EarningsPerShareBasic | $ (0.49)us-gaap_EarningsPerShareBasic | $ (1.31)us-gaap_EarningsPerShareBasic |
| Diluted | $ (0.49)us-gaap_EarningsPerShareDiluted | $ (0.49)us-gaap_EarningsPerShareDiluted | $ (1.31)us-gaap_EarningsPerShareDiluted |
| Weighted average number of shares used in per common share calculations: | |||
| Basic | 60,335us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 57,832us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 54,219us-gaap_WeightedAverageNumberOfSharesOutstandingBasic |
| Diluted | 63,386us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 57,832us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 54,219us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding |
| X | ||||||||||
|
- Definition
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Revenue earned during the period arising from products sold or services provided under the terms of a contract, not elsewhere specified in the taxonomy. May include government contracts, construction contracts, and any other contract related to a particular project or product. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of net income (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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- Definition
Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net amount of nonoperating interest income (expense). No definition available.
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- 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.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- 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
|
| X | ||||||||||
|
- Definition
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|