Annual report pursuant to Section 13 and 15(d)

Notes Payable - Additional Information (Detail)

v2.4.1.9
Notes Payable - Additional Information (Detail) (USD $)
1 Months Ended 12 Months Ended 1 Months Ended
Oct. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Aug. 31, 2014
Jun. 30, 2013
Oct. 31, 2009
Apr. 11, 2014
Debt Instrument [Line Items]              
Annual interest rate 3.25%us-gaap_DebtInstrumentInterestRateStatedPercentage            
Notes payable   $ 144,389us-gaap_NotesPayable $ 638,078us-gaap_NotesPayable        
Common stock, shares issued   25,938,332us-gaap_CommonStockSharesIssued 6,964,788us-gaap_CommonStockSharesIssued        
Number of common stock called by warrants   33,333us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 301,778us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 162,539us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 301,778us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 27,839us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights  
Common stock, term   5 years          
Common stock, issued value   2,594us-gaap_CommonStockValue 696us-gaap_CommonStockValue        
Estimated fair value of warrants       55,000crbp_FairValueOfWarrantIssued      
Gain on the settlement of debt   145,006us-gaap_GainsLossesOnExtinguishmentOfDebt          
Interest expense   24,021us-gaap_InterestExpense 45,114us-gaap_InterestExpense        
Proceeds from issuance of notes payable 192,000us-gaap_ProceedsFromNotesPayable 192,000us-gaap_ProceedsFromNotesPayable 7,252us-gaap_ProceedsFromNotesPayable        
Principal and interest payable 24,293us-gaap_DebtInstrumentPeriodicPayment            
Warrant [Member]              
Debt Instrument [Line Items]              
Common stock, shares issued   33,333us-gaap_CommonStockSharesIssued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
         
2014 Private Placement [Member]              
Debt Instrument [Line Items]              
Common stock, shares issued             6,000,000us-gaap_CommonStockSharesIssued
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
Number of common stock called by warrants   10,260,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
         
Common stock, cost exercisable per share   $ 1.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
         
2014 Private Placement [Member] | Common Stock And Warrants [Member]              
Debt Instrument [Line Items]              
Sale price for one share of common stock and one warrant   $ 1.00us-gaap_SharesIssuedPricePerShare
/ us-gaap_StatementEquityComponentsAxis
= crbp_CommonStockAndWarrantsMember
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
         
Vendor One [Member]              
Debt Instrument [Line Items]              
Annual interest rate   7.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
         
Settlement agreement, repayment   90,000us-gaap_RepaymentsOfDebt
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
  631,000us-gaap_RepaymentsOfDebt
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
     
Notes payable       531,000us-gaap_NotesPayable
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
     
Accrued interest       93,000us-gaap_InterestPayableCurrentAndNoncurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
     
Accounts payable       7,000us-gaap_AccountsPayableCurrentAndNoncurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
     
Common stock, shares issued   541,948us-gaap_CommonStockSharesIssued
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
         
Number of common stock called by warrants   162,539us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
         
Common stock, cost exercisable per share   $ 1.00us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorOneMember
         
Vendor Two [Member]              
Debt Instrument [Line Items]              
Notes payable   75,244us-gaap_NotesPayable
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorTwoMember
         
Number of periodic payments   Four equal monthly principal installments          
Principal installment   25,081us-gaap_DebtInstrumentPeriodicPaymentPrincipal
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorTwoMember
         
Estimate of Fair Value Measurement [Member] | 2014 Private Placement [Member] | Common Stock [Member]              
Debt Instrument [Line Items]              
Estimated fair value per share   $ 0.63us-gaap_SharePrice
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
         
Estimate of Fair Value Measurement [Member] | 2014 Private Placement [Member] | Warrant [Member]              
Debt Instrument [Line Items]              
Estimated fair value per share   $ 0.37us-gaap_SharePrice
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
         
Black Scholes [Member]              
Debt Instrument [Line Items]              
Common stock, issued value   341,000us-gaap_CommonStockValue
/ us-gaap_ValuationTechniqueAxis
= crbp_BlackScholesMember
         
Estimated fair value of warrants   $ 55,000crbp_FairValueOfWarrantIssued
/ us-gaap_ValuationTechniqueAxis
= crbp_BlackScholesMember
         
Minimum [Member]              
Debt Instrument [Line Items]              
Common stock, term 8 months