Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v2.4.1.9
Related Party Transactions - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 0 Months Ended
Aug. 31, 2014
Jun. 30, 2013
Oct. 31, 2009
Mar. 31, 2015
Mar. 21, 2014
Dec. 31, 2014
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Schedule of Other Related Party Transactions [Line Items]                  
Common stock share issued       26,003,304us-gaap_CommonStockSharesIssued   25,938,332us-gaap_CommonStockSharesIssued 25,938,332us-gaap_CommonStockSharesIssued    
Common stock, issued value       2,600us-gaap_CommonStockValue   $ 2,594us-gaap_CommonStockValue      
Common stock value per share       0.0001us-gaap_CommonStockParOrStatedValuePerShare   $ 0.0001us-gaap_CommonStockParOrStatedValuePerShare $ 0.0001us-gaap_CommonStockParOrStatedValuePerShare    
Number of shares of common stock called by warrants 162,539us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 301,778us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 27,839us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 13,647,848us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights       301,778us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights  
Warrants, exercise price per share $ 1invest_InvestmentWarrantsExercisePrice $ 0.66invest_InvestmentWarrantsExercisePrice $ 0.60invest_InvestmentWarrantsExercisePrice            
Warrant exercisable term 5 years   5 years            
Aegis Capital Corp and Other Affiliates [Member]                  
Schedule of Other Related Party Transactions [Line Items]                  
Common stock share issued                 6,000,000us-gaap_CommonStockSharesIssued
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_AegisCapitalCorpAndOtherAffiliatesMember
Common stock, issued value                 120,000us-gaap_CommonStockValue
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_AegisCapitalCorpAndOtherAffiliatesMember
Common stock value per share                 $ 0.02us-gaap_CommonStockParOrStatedValuePerShare
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_AegisCapitalCorpAndOtherAffiliatesMember
Director [Member]                  
Schedule of Other Related Party Transactions [Line Items]                  
Common stock share issued                 450,000us-gaap_CommonStockSharesIssued
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_DirectorMember
Trust [Member]                  
Schedule of Other Related Party Transactions [Line Items]                  
Common stock share issued                 90,000us-gaap_CommonStockSharesIssued
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_TrustMember
Aegis Capital Corp [Member]                  
Schedule of Other Related Party Transactions [Line Items]                  
Description of private placement       The Placement Agent has a right to appoint one member of our board of directors for a two-year term (the "Aegis Nominee").          
Orchestra Medical Ventures LLC [Member]                  
Schedule of Other Related Party Transactions [Line Items]                  
Compensation rate per month         5,000crbp_RelatedPartyTransactionMonthlyRatesForTransitionServices
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_OrchestraMedicalVenturesLlcMember 		       
Amount payable to the service       15,000us-gaap_DueToRelatedPartiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_OrchestraMedicalVenturesLlcMember 		         
Vendor [Member]                  
Schedule of Other Related Party Transactions [Line Items]                  
Estimated fair value of warrants $ 55,000crbp_FairValueOfWarrantIssued
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= crbp_VendorMember