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Fair Value of Assets and Liabilities - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)
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3 Months Ended |
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Mar. 31, 2014
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Mar. 31, 2015
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Dec. 31, 2014
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| Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |
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| Derivative warrant liability, Beginning balance |
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$ 0us-gaap_DerivativeFairValueOfDerivativeLiability
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| Change in fair value of the derivative warrant liability |
(1,518)us-gaap_FairValueAdjustmentOfWarrants
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| Derivative warrant liability, Ending balance |
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0us-gaap_DerivativeFairValueOfDerivativeLiability
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0us-gaap_DerivativeFairValueOfDerivativeLiability
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| Fair Value, Measurements, Recurring [Member] |
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| Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |
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| Derivative warrant liability, Beginning balance |
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18,414us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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| Change in fair value of the derivative warrant liability |
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1,518us-gaap_FairValueAdjustmentOfWarrants
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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| Reclassification of derivative warrant liability |
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0crbp_ReclassificationOfWarrantDerivativeLiability
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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| Derivative warrant liability, Ending balance |
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19,932us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] |
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| Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |
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| Reclassification of derivative warrant liability |
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0crbp_ReclassificationOfWarrantDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |
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| Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |
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| Reclassification of derivative warrant liability |
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0crbp_ReclassificationOfWarrantDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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| Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |
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| Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items] |
|
|
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| Derivative warrant liability, Beginning balance |
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18,414us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
|
|
| Change in fair value of the derivative warrant liability |
|
1,518us-gaap_FairValueAdjustmentOfWarrants
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
|
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| Reclassification of derivative warrant liability |
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0crbp_ReclassificationOfWarrantDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
|
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| Derivative warrant liability, Ending balance |
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$ 19,932us-gaap_DerivativeFairValueOfDerivativeLiability
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
/ us-gaap_FairValueByMeasurementFrequencyAxis
= us-gaap_FairValueMeasurementsRecurringMember
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