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INCOME TAXES (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Net operating loss carry-forwards $ 10,774,358us-gaap_OperatingLossCarryforwards
Components of Deferred Tax Assets [Abstract]  
Net operating loss carry-forwards 4,797,498us-gaap_DeferredTaxAssetsOtherLossCarryforwards
Share-based compensation 588,860us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Research and development credit carry-forwards 506,325us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch
Gross deferred tax assets 5,892,683us-gaap_DeferredTaxAssetsGross
Less: valuation allowance (5,892,683)us-gaap_DeferredTaxAssetsValuationAllowance
Percentage of deferred tax asset reserved 100dprx_PercentageOfDeferredTaxAssetReserved
Effective income tax expense (benefit)  
Federal income tax expense at statutory rate (34.00%)us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Permanent differences 0.1us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther
Change in valuation allowance 33.90%us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Uncertain tax position $ 0us-gaap_LiabilityForUncertainTaxPositionsCurrent
Minimum  
Components of Deferred Tax Assets [Abstract]  
Period of profitability 2 years