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Common Stock Options (Details Narrative) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Common Stock Options Details Narrative    
Shares available for grant 19,815,000rcar_SharesAvailable  
Stock-based compensation administrative expense $ 10,944us-gaap_AdministrativeFeesExpense $ 6,782us-gaap_AdministrativeFeesExpense
Stock options vested 85,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber  
Stock options unvested 100,000rcar_StockOptionsUnvested  
Unrecognized compensation cost $ 32,016rcar_UnrecognizedCompensationCost