XML 50 R2.htm IDEA: XBRL DOCUMENT v2.4.1.9
CONSOLIDATED BALANCE SHEETS (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Current assets:    
Cash and cash equivalents $ 42,796us-gaap_CashAndCashEquivalentsAtCarryingValue $ 12,990us-gaap_CashAndCashEquivalentsAtCarryingValue
Restricted cash 266us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue 795us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue
Marketable securities 108,645us-gaap_AvailableForSaleSecuritiesCurrent 52,234us-gaap_AvailableForSaleSecuritiesCurrent
Interest and other receivables 963us-gaap_NontradeReceivablesCurrent 564us-gaap_NontradeReceivablesCurrent
Prepaid assets 736us-gaap_PrepaidExpenseCurrent 474us-gaap_PrepaidExpenseCurrent
Total current assets 153,406us-gaap_AssetsCurrent 67,057us-gaap_AssetsCurrent
Noncurrent marketable securities 18,932us-gaap_AvailableForSaleSecuritiesNoncurrent  
Property and equipment, net 173us-gaap_PropertyPlantAndEquipmentNet 92us-gaap_PropertyPlantAndEquipmentNet
Deposits and other assets   195us-gaap_DepositsAssetsNoncurrent
Total assets 172,511us-gaap_Assets 67,344us-gaap_Assets
Current liabilities:    
Accounts payable 1,033us-gaap_AccountsPayableCurrent 1,397us-gaap_AccountsPayableCurrent
Accrued compensation and benefits 4,213us-gaap_EmployeeRelatedLiabilitiesCurrent 3,946us-gaap_EmployeeRelatedLiabilitiesCurrent
Accrued restructuring charges   94us-gaap_RestructuringReserveCurrent
Accrued liabilities 1,537us-gaap_AccruedLiabilitiesCurrent 1,783us-gaap_AccruedLiabilitiesCurrent
Deferred revenue 35,000us-gaap_DeferredRevenue  
Fair value of derivatives 16us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue 367us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Total current liabilities 41,799us-gaap_LiabilitiesCurrent 7,587us-gaap_LiabilitiesCurrent
Commitments and contingencies      
Stockholders' equity:    
Preferred stock, $0.001 par value; 3,000,000 shares authorized; no shares issued and outstanding at December 31, 2014 and 2013      
Common Stock, $0.001 par value; 300,000,000 shares authorized; 157,429,871 and 130,677,949 shares issued and outstanding at December 31, 2014 and 2013, respectively 157us-gaap_CommonStockValue 131us-gaap_CommonStockValue
Additional paid-in capital 1,059,072us-gaap_AdditionalPaidInCapitalCommonStock 952,403us-gaap_AdditionalPaidInCapitalCommonStock
Accumulated deficit (928,433)us-gaap_RetainedEarningsAccumulatedDeficit (892,763)us-gaap_RetainedEarningsAccumulatedDeficit
Accumulated other comprehensive loss (84)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax (14)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Total stockholders' equity 130,712us-gaap_StockholdersEquity 59,757us-gaap_StockholdersEquity
Total liabilities and stockholders' equity $ 172,511us-gaap_LiabilitiesAndStockholdersEquity $ 67,344us-gaap_LiabilitiesAndStockholdersEquity