XML 82 R7.htm IDEA: XBRL DOCUMENT v2.4.1.9
Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Cash flows from operating activities:      
Net loss $ (23,342)us-gaap_NetIncomeLoss $ (17,143)us-gaap_NetIncomeLoss $ (22,101)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash used in operating activities:      
Stock-based compensation 885us-gaap_ShareBasedCompensation 622us-gaap_ShareBasedCompensation 529us-gaap_ShareBasedCompensation
Noncash rent expense 29us-gaap_StraightLineRentAdjustments (1)us-gaap_StraightLineRentAdjustments (68)us-gaap_StraightLineRentAdjustments
Change in carrying value of preferred stock warrant liability (504)us-gaap_FairValueAdjustmentOfWarrants (202)us-gaap_FairValueAdjustmentOfWarrants (39)us-gaap_FairValueAdjustmentOfWarrants
Depreciation and amortization 126us-gaap_DepreciationDepletionAndAmortization 197us-gaap_DepreciationDepletionAndAmortization 346us-gaap_DepreciationDepletionAndAmortization
Loss (gain) on disposal of property and equipment (28)us-gaap_GainLossOnSaleOfPropertyPlantEquipment 7us-gaap_GainLossOnSaleOfPropertyPlantEquipment 2us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Loss on extinguishment of debt 2,493us-gaap_GainsLossesOnExtinguishmentOfDebt    
Noncash interest expense 416us-gaap_PaidInKindInterest 588us-gaap_PaidInKindInterest 61us-gaap_PaidInKindInterest
Changes in operating assets and liabilities:      
Accounts receivable, prepaid expenses and other current assets (713)ceru_IncreaseDecreaseAccountsReceivablePrepaidExpensesAndOtherCurrentAssets (229)ceru_IncreaseDecreaseAccountsReceivablePrepaidExpensesAndOtherCurrentAssets (61)ceru_IncreaseDecreaseAccountsReceivablePrepaidExpensesAndOtherCurrentAssets
Accounts payable 341us-gaap_IncreaseDecreaseInAccountsPayable 14us-gaap_IncreaseDecreaseInAccountsPayable (163)us-gaap_IncreaseDecreaseInAccountsPayable
Accrued expenses 1,236us-gaap_IncreaseDecreaseInAccruedLiabilities (467)us-gaap_IncreaseDecreaseInAccruedLiabilities 489us-gaap_IncreaseDecreaseInAccruedLiabilities
Net cash used in operating activities (19,061)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations (16,614)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations (21,005)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Cash flows from investing activities:      
Purchases of property and equipment (225)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (7)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (180)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Proceeds from sale of property and equipment 40us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment    
Net cash used in investing activities (185)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations (7)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations (180)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Cash flows from financing activities:      
Proceeds from sale of common stock 140us-gaap_ProceedsFromIssuanceOfCommonStock 35us-gaap_ProceedsFromIssuanceOfCommonStock 3us-gaap_ProceedsFromIssuanceOfCommonStock
Proceeds from issuance of convertible promissory notes 8,500us-gaap_ProceedsFromConvertibleDebt 8,824us-gaap_ProceedsFromConvertibleDebt  
Proceeds from initial public offering, net 59,862us-gaap_ProceedsFromIssuanceInitialPublicOffering    
Proceeds from loans payable     10,000us-gaap_ProceedsFromNotesPayable
Payments on capital lease     (3)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
Payments on loans payable (3,348)us-gaap_RepaymentsOfNotesPayable (3,084)us-gaap_RepaymentsOfNotesPayable (376)us-gaap_RepaymentsOfNotesPayable
Cash paid for debt issuance costs (222)us-gaap_PaymentsOfDebtIssuanceCosts (373)us-gaap_PaymentsOfDebtIssuanceCosts (4)us-gaap_PaymentsOfDebtIssuanceCosts
Proceeds from sale of redeemable convertible preferred stock, net of issuance costs     12,927us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock
Net cash provided by financing activities 64,932us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations 5,402us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations 22,547us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Net increase (decrease) in cash and cash equivalents 45,686us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease (11,219)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease 1,362us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents — Beginning of year 5,488us-gaap_CashAndCashEquivalentsAtCarryingValue 16,707us-gaap_CashAndCashEquivalentsAtCarryingValue 15,345us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents — End of year 51,174us-gaap_CashAndCashEquivalentsAtCarryingValue 5,488us-gaap_CashAndCashEquivalentsAtCarryingValue 16,707us-gaap_CashAndCashEquivalentsAtCarryingValue
Supplemental disclosures of noncash investing and financing activities:      
Conversion of redeemable convertible preferred stock into common stock 81,526us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities 2,226us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities  
Conversion of convertible notes and accrued interest into common stock, net 20,129ceru_ConversionOfAccruedInterestAndConvertibleNotesPayable    
Reclassification of warrants to additional paid-in capital 424ceru_ReclassificationOfWarrantsAdjustedInAdditionalPaidInCapital    
Accretion of redeemable convertible preferred stock to redemption value     73us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment
Fair value of preferred stock warrants issued in connection with debt     360ceru_FairValueAdjustmentOfPreferredStockWarrants
Supplemental cash flow information — Interest paid $ 400us-gaap_InterestPaidNet $ 664us-gaap_InterestPaidNet $ 507us-gaap_InterestPaidNet