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Intangible Assets - Intellectual Property (Details Narrative) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Impairment loss $ 10,000us-gaap_ImpairmentOfIntangibleAssetsFinitelived    
Intangible assets 152,854us-gaap_FiniteLivedIntangibleAssetsNet   162,854us-gaap_FiniteLivedIntangibleAssetsNet
Other current liabilities 37,500us-gaap_OtherLiabilitiesCurrent    
Other long term liabilities 18,750us-gaap_OtherLiabilitiesNoncurrent    
Consulting expense associated with the Series A Warrant amounted 0rcar_ConsultingExpenseAssociatedWithSeriesWarrantAmounted 126,833rcar_ConsultingExpenseAssociatedWithSeriesWarrantAmounted  
Research and development costs associated with the Series A Warrant amounted 0rcar_ResearchAndDevelopmentCostsAssociatedWithSeriesWarrantAmounted 0rcar_ResearchAndDevelopmentCostsAssociatedWithSeriesWarrantAmounted  
Dr Gerlach [Member]      
Other current liabilities 50,000us-gaap_OtherLiabilitiesCurrent
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= rcar_DrGerlachMember
   
Other long term liabilities $ 150,000us-gaap_OtherLiabilitiesNoncurrent
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= rcar_DrGerlachMember