Annual report pursuant to Section 13 and 15(d)

Accrued Expenses and Other Long-Term Liabilities - Additional Information (Detail)

v2.4.1.9
Accrued Expenses and Other Long-Term Liabilities - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2012
Schedule Accrued Expenses And Other Long-Term Liabilities [Line Items]          
Other Accrued Liabilities Current $ 213,000us-gaap_OtherAccruedLiabilitiesCurrent $ 192,000us-gaap_OtherAccruedLiabilitiesCurrent      
Asset Retirement Obligation, Accretion Expense 154,000us-gaap_AssetRetirementObligationAccretionExpense 136,000us-gaap_AssetRetirementObligationAccretionExpense      
Capital Leases, Future Minimum Payments Receivable, Next Twelve Months 500,000us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableCurrent        
Subsequent Event [Member]          
Schedule Accrued Expenses And Other Long-Term Liabilities [Line Items]          
Capital Leases, Future Minimum Payments, Receivable in Two Years       500,000us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInTwoYears
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember 		 
Capital Leases, Future Minimum Payments, Receivable in Three Years     500,000us-gaap_CapitalLeasesFutureMinimumPaymentsReceivableInThreeYears
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember 		   
Ovamed Manufacturing Rights [Member]          
Schedule Accrued Expenses And Other Long-Term Liabilities [Line Items]          
Other Liabilities         1,500,000us-gaap_OtherLiabilities
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cndo_OvamedManufacturingRightsMember
Other Accrued Liabilities Current 1,000,000us-gaap_OtherAccruedLiabilitiesCurrent
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cndo_OvamedManufacturingRightsMember 		       
Other Accrued Liabilities, Noncurrent $ 334,000us-gaap_OtherAccruedLiabilitiesNoncurrent
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cndo_OvamedManufacturingRightsMember