Annual report pursuant to Section 13 and 15(d)

Statements of Preferred Stock and Stockholders' Equity (Deficit)

v2.4.1.9
Statements of Preferred Stock and Stockholders' Equity (Deficit) (USD $)
Total
Series A Convertible Preferred Stock [Member]
Series A Non-Convertible Preferred Stock [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Deficit Accumulated During the Development Stage [Member]
Beginning balance at Dec. 31, 2012 $ (1,186,989)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest $ 986,609us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesAConvertiblePreferredStockMember
$ 2,000us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesANonConvertiblePreferredStockMember
$ 696us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 96,555us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (1,284,240)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Beginning balance, shares at Dec. 31, 2012   1,636,404us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesAConvertiblePreferredStockMember
200,000us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesANonConvertiblePreferredStockMember
6,964,788us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Issuance of Series A preferred stock/ common stock at inception of Corbus   120,000us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesAConvertiblePreferredStockMember
       
Issuance of Series A preferred stock/ common stock at inception of Corbus, shares   198,808us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesAConvertiblePreferredStockMember
       
Stock compensation expense 6,141us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation       6,141us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Net loss (602,350)us-gaap_NetIncomeLoss         (602,350)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Ending balance at Dec. 31, 2013 (1,783,198)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest 1,106,609us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesAConvertiblePreferredStockMember
2,000us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesANonConvertiblePreferredStockMember
696us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
102,696us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
(1,886,590)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Ending balance, shares at Dec. 31, 2013   1,835,212us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesAConvertiblePreferredStockMember
200,000us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesANonConvertiblePreferredStockMember
6,964,788us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Issuance of Series A preferred stock/ common stock at inception of Corbus       600us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
(600)us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Issuance of Series A preferred stock/ common stock at inception of Corbus, shares       6,000,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Conversion of Series A convertible preferred stock into common stock upon reverse acquisition 1,108,609us-gaap_StockIssuedDuringPeriodValueConversionOfUnits (1,106,609)us-gaap_StockIssuedDuringPeriodValueConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesAConvertiblePreferredStockMember
(2,000)us-gaap_StockIssuedDuringPeriodValueConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesANonConvertiblePreferredStockMember
204us-gaap_StockIssuedDuringPeriodValueConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
1,108,405us-gaap_StockIssuedDuringPeriodValueConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Conversion of Series A convertible preferred stock into common stock upon reverse acquisition, Shares   (1,835,212)us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesAConvertiblePreferredStockMember
(200,000)us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= crbp_SeriesANonConvertiblePreferredStockMember
2,035,212us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Issuance of common stock in private placement, net of issuance costs of $1,857,668 8,402,332crbp_IssuanceOfCommonStockPrivatePlacement     1,026crbp_IssuanceOfCommonStockPrivatePlacement
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
8,401,306crbp_IssuanceOfCommonStockPrivatePlacement
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Issuance of common stock in private placement, shares       10,260,000crbp_IssuanceOfCommonStockPrivatePlacementShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Issuance of common stock in exchange for settlement of debt 396,192us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities     54us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
396,138us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Issuance of common stock in exchange for settlement of debt, shares       541,948us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Stock compensation expense 193,120us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation       193,120us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Issuance of common stock upon exercise of warrants 33,333crbp_IssuanceOfCommonStockUponExerciseOfWarrantsAmount     5crbp_IssuanceOfCommonStockUponExerciseOfWarrantsAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
33,328crbp_IssuanceOfCommonStockUponExerciseOfWarrantsAmount
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Issuance of common stock upon exercise of warrants, shares       48,693crbp_IssuanceOfCommonStockUponExerciseOfWarrantsShares
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Issuance of common stock upon exercise of stock options 4,450us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised     9us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
4,441us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Issuance of common stock upon exercise of stock options, shares 87,691us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised     87,691us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
   
Reclasssification of derivative warrant liability 48,380crbp_AdjustmentsToAdditionalPaidInCapitalReclassificationOfWarrantsAsDerivativeLiabilities       48,380crbp_AdjustmentsToAdditionalPaidInCapitalReclassificationOfWarrantsAsDerivativeLiabilities
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
 
Net loss (2,540,485)us-gaap_NetIncomeLoss         (2,540,485)us-gaap_NetIncomeLoss
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Ending balance at Dec. 31, 2014 $ 5,862,733us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest     $ 2,594us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 10,287,214us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AdditionalPaidInCapitalMember
$ (4,427,075)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedDeficitDuringDevelopmentStageMember
Ending balance, shares at Dec. 31, 2014       25,938,332us-gaap_SharesOutstanding
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember