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ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
ACCOUNTS PAYABLE AND ACCRUED EXPENSES    
Accrued compensation expense $ 511,769us-gaap_EmployeeRelatedLiabilitiesCurrent $ 247,845us-gaap_EmployeeRelatedLiabilitiesCurrent
Accrued research and development 641,997dprx_AccruedResearchAndDevelopmentCostsCurrent 367,065dprx_AccruedResearchAndDevelopmentCostsCurrent
Accrued professional fees 23,901us-gaap_AccruedProfessionalFeesCurrent 160,370us-gaap_AccruedProfessionalFeesCurrent
Other accounts payable and accrued expenses 82,931dprx_OtherAccountsPayableAndAccruedExpensesCurrent 48,554dprx_OtherAccountsPayableAndAccruedExpensesCurrent
Totals $ 1,260,598us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent $ 823,834us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent