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Fair Value of Financial Instruments (Details Textual) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Fair Value of Financial Instruments [Abstract]    
Note payable discount $ 5,665crvn_NotePayableDiscountFairValueDisclosure $ 13,493crvn_NotePayableDiscountFairValueDisclosure