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Commitments and Contingencies (Details) (USD $)
Mar. 31, 2015
Summary of future contractual obligations  
April 1 through December 31, 2015 $ 199,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
2016 257,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2017 252,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
2018 152,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
2019 100,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
Total 960,000us-gaap_OperatingLeasesFutureMinimumPaymentsDue
Research and Development [Member]  
Summary of future contractual obligations  
April 1 through December 31, 2015 100,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ResearchAndDevelopmentArrangementMember
2016 100,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ResearchAndDevelopmentArrangementMember
2017 100,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ResearchAndDevelopmentArrangementMember
2018 100,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ResearchAndDevelopmentArrangementMember
2019 100,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ResearchAndDevelopmentArrangementMember
Total 500,000us-gaap_OperatingLeasesFutureMinimumPaymentsDue
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ResearchAndDevelopmentArrangementMember
Property and Other Leases [Member]  
Summary of future contractual obligations  
April 1 through December 31, 2015 99,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_PropertyPlantAndEquipmentOtherTypesMember
2016 157,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_PropertyPlantAndEquipmentOtherTypesMember
2017 152,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_PropertyPlantAndEquipmentOtherTypesMember
2018 52,000us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_PropertyPlantAndEquipmentOtherTypesMember
2019   
Total $ 460,000us-gaap_OperatingLeasesFutureMinimumPaymentsDue
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_PropertyPlantAndEquipmentOtherTypesMember