XML 24 R17.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value Measurements (Details) (Warrant [Member], USD $)
3 Months Ended
Mar. 31, 2014
Warrant [Member]
 
Derivatives, Fair Value [Line Items]  
Balance at beginning $ 1,417,527us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Change in fair value 334,133us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPeriodIncreaseDecrease
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Exercise of underlying warrants (1,751,660)cur_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityExercises
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember
Balance at ending $ 0us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_WarrantMember