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           8. RELATED PARTIES (Details) (USD $) 
         | 
        12 Months Ended | |
|---|---|---|
| 
           Dec. 31, 2014 
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           Dec. 31, 2013 
         | 
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| Sales to related parties | $ 5,443,978us-gaap_RevenueFromRelatedParties | $ 2,154,063us-gaap_RevenueFromRelatedParties | 
| Medical Marijuana, Inc. ("MJNA") | ||
| Related party relationship | Stockholder | |
| Sales to related parties | 
0us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = canv_RelatedParty1Member  | 
        
92,690us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = canv_RelatedParty1Member  | 
      
| HempMeds PX | ||
| Related party relationship | 80% owned by MJNA | |
| Sales to related parties | 
5,443,978us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = canv_RelatedParty2Member  | 
        
871,315us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = canv_RelatedParty2Member  | 
      
| Dixie/Red Dice Holdings | ||
| Related party relationship | 60% owned by MJNA | |
| Sales to related parties | 
0us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = canv_RelatedParty3Member  | 
        
365,058us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = canv_RelatedParty3Member  | 
      
| Canchew Biotechnologies | ||
| Related party relationship | 50% owned by MJNA | |
| Sales to related parties | 
$ 0us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = canv_RelatedParty4Member  | 
        
$ 825,000us-gaap_RevenueFromRelatedParties / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = canv_RelatedParty4Member  | 
      
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          Related party relationship No definition available. 
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          Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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