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RELATED PARTY TRANSACTIONS (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Related party transactions    
Fees for services rendered by the related party $ 30,734us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty $ 0us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Aumoe    
Related party transactions    
Fees for services rendered by the related party $ 22,500us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dprx_AumoePartnersLLCMember
$ 77,500us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= dprx_AumoePartnersLLCMember