Annual report pursuant to Section 13 and 15(d)

Debt- Additional Information (Detail)

v2.4.1.9
Debt- Additional Information (Detail) (USD $)
12 Months Ended 1 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Aug. 31, 2012
Feb. 13, 2014
Debt [Line Items]          
Fair value of the warrant volatility 9.30%us-gaap_FairValueAssumptionsExpectedVolatilityRate        
Fair value of risk-free interest rate 0.10%us-gaap_FairValueAssumptionsRiskFreeInterestRate        
Interest expense related to the Hercules loan $ 1,338,000us-gaap_InterestExpense $ 1,923,000us-gaap_InterestExpense $ 670,000us-gaap_InterestExpense    
Current portion of note payable 0us-gaap_NotesPayableCurrent 6,203,000us-gaap_NotesPayableCurrent      
Non current portion of notes payable 14,009,000us-gaap_LongTermNotesPayable 7,017,000us-gaap_LongTermNotesPayable      
Interest Expense, Debt 1,300,000us-gaap_InterestExpenseDebt 1,900,000us-gaap_InterestExpenseDebt 670,000us-gaap_InterestExpenseDebt    
Israel Discount Bank Of New York [Member]          
Debt [Line Items]          
Debt Instrument, Face Amount         15,000,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IsraelDiscountBankOfNewYorkMember
Interest Expense, Debt 15,000,000us-gaap_InterestExpenseDebt
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IsraelDiscountBankOfNewYorkMember
       
IDB Promissory Note Payable [Member]          
Debt [Line Items]          
Loan bears interest at a rate per annum 2.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IdbPromissoryNotePayableMember
       
Maturity Date Feb. 13, 2016        
Debt Discount 292,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IdbPromissoryNotePayableMember
4,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IdbPromissoryNotePayableMember
     
Amortization of Debt Discount (Premium) 292,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IdbPromissoryNotePayableMember
4,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IdbPromissoryNotePayableMember
     
Long-term Debt, Gross 14us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IdbPromissoryNotePayableMember
       
Debt Instrument, Maturity Date Feb. 13, 2016        
IDB Promissory Note Payable [Member] | Minimum [Member]          
Debt [Line Items]          
Debt Instrument, Unused Borrowing Capacity, Amount 100,000us-gaap_DebtInstrumentUnusedBorrowingCapacityAmount
/ us-gaap_LineOfCreditFacilityAxis
= cndo_IdbPromissoryNotePayableMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
       
Hercules Note Payble [Member]          
Debt [Line Items]          
Debt Discount 43,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
20,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
6,600us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
   
Debt Instrument, Periodic Payment, Interest 100,000us-gaap_DebtInstrumentPeriodicPaymentInterest
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
       
Debt Instrument, Periodic Payment 14,000,000us-gaap_DebtInstrumentPeriodicPayment
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
       
Debt Instrument, Periodic Payment, Principal 13,200,000us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
       
Debt Instrument Term Charges 400,000cndo_DebtInstrumentTermCharges
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
       
Debt Instrument, Fee Amount 300,000us-gaap_DebtInstrumentFeeAmount
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
       
Interest Expense, Debt 845,000us-gaap_InterestExpenseDebt
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
1,700,000us-gaap_InterestExpenseDebt
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
609,000us-gaap_InterestExpenseDebt
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
   
Accretion of Discount 435,000us-gaap_AccretionOfDiscount
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
381,000us-gaap_AccretionOfDiscount
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
123,000us-gaap_AccretionOfDiscount
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
   
Amortization of Debt Discount (Premium) 43,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
20,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
6,600us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_DebtInstrumentAxis
= cndo_HerculesNotePaybleMember
   
Hercules Debt Agreement [Member]          
Debt [Line Items]          
Term loan       15,000,000us-gaap_LongTermDebt
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Received net proceeds       14,700,000us-gaap_ProceedsFromDebtNetOfIssuanceCosts
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Subsequent private placement       2,000,000us-gaap_ProceedsFromIssuanceOfPrivatePlacement
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Warrant to purchase common stock       73,009us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Warrant exercise price       $ 5.65us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Interest rate       interest at a rate per annum equal to the greater of (i) 9.25% or (ii) 9.25% plus the sum of the prevailing prime rate minus 3.25%  
Maturity Date       Mar. 01, 2016  
Interest payment term       interest-only payments for the initial 12 months and thereafter requires repayment of the principal balance with interest in 30 monthly installments  
Charges on termination of the loan stated percentage       2.65%cndo_ChargesOnTerminationOfLoanStatedPercentage
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Charges on termination of the loan, amount       398,000us-gaap_LiabilitiesSubjectToCompromiseEarlyContractTerminationFees
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Fees related to the loan agreement       218,000us-gaap_DebtIssuanceCosts
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Debt Discount       939,000us-gaap_AmortizationOfDebtDiscountPremium
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Interest rate for amortize loan discounts       12.30%cndo_InterestRateForAmortizeLoanDiscounts
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Interest expenses accretion of debt discounts 381,000cndo_InterestExpensesAccretionOfDebtDiscounts
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
  123,000cndo_InterestExpensesAccretionOfDebtDiscounts
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
   
Interest expense related to the Hercules loan 1,767,000us-gaap_InterestExpense
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
  609,000us-gaap_InterestExpense
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
   
Current portion of note payable 6,203,000us-gaap_NotesPayableCurrent
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
       
Non current portion of notes payable 7,017,000us-gaap_LongTermNotesPayable
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
       
Debt discount recorded 434,000us-gaap_DebtInstrumentUnamortizedDiscount
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
       
Amortization of Debt Discount (Premium)       939,000us-gaap_AmortizationOfDebtDiscountPremium
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
 
Debt Instrument, Maturity Date       Mar. 01, 2016  
Hercules Debt Agreement [Member] | Warrant [Member]          
Debt [Line Items]          
Fair value of the warrant volatility       87.20%us-gaap_FairValueAssumptionsExpectedVolatilityRate
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
 
Fair value of risk-free interest rate       1.10%us-gaap_FairValueAssumptionsRiskFreeInterestRate
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
 
Approximate fair value of the warrant       $ 323,000us-gaap_DebtInstrumentFairValue
/ cndo_DebtAgreementAxis
= cndo_HerculesDebtAgreementMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember