Represents the offering price per unit of units privately placed.

No definition available.

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Data Type:	num:perShareItemType
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- Definition

Vesting period of awards granted in the transaction in which equity securities were issued to pay for goods or nonemployee services.

+ References

No definition available.

+ Details

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Namespace Prefix:	dprx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of vendors to whom membership interests are granted as payment for services rendered or acknowledged claims.

+ References

No definition available.

+ Details

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Namespace Prefix:	dprx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The term of service to be provided to the entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	dprx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of share-based compensation granted to nonemployees as payment for services rendered or acknowledged claims.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares or units of entity securities issued in the transaction in which equity securities were issued to pay for goods or nonemployee services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 50

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=dprx_ConsultantForConsultingServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=dprx_ConsultantForInvestorRelatedServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=dprx_ConsultantForProductDevelopmentWorkMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis=dprx_RRDInternationalLLCMember
Namespace Prefix:
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SHARE-BASED PAYMENTS TO VENDORS (Details) (USD $)	0 Months Ended	12 Months Ended					1 Months Ended
SHARE-BASED PAYMENTS TO VENDORS (Details) (USD $)	Jul. 23, 2010	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jan. 31, 2013	Aug. 31, 2013	Oct. 31, 2013	Jan. 31, 2014
Share-based payments to vendors
Value of recent private placement taken as fair value for the grant of the membership interests (in dollars per share)	$ 50	$ 50	$ 50	$ 50	$ 50	$ 50
Consultant for consulting services
Share-based payments to vendors
Value of recent private placement taken as fair value for the grant of the membership interests (in dollars per share)							$ 50
Granted stock options			$ 10,900
Consultant for consulting services \| Class A Membership Interests
Share-based payments to vendors
Membership Interests granted (in units)							218
Number of vendors to whom membership interests are granted							1
Consultant for investor related services
Share-based payments to vendors
Granted stock options		114,812	101,666
Term of services								12 months
Consultant for investor related services \| Class A Membership Interests
Share-based payments to vendors
Membership Interests granted (in units)								2,000
Value of recent private placement taken as fair value for the grant of the membership interests (in dollars per share)								50
Vesting period								1 year
Consultant for product development work
Share-based payments to vendors
Granted stock options									353,000
Term of services									3 months
Consultant for product development work \| Class A Membership Interests
Share-based payments to vendors
Membership Interests granted (in units)									1,412
Value of recent private placement taken as fair value for the grant of the membership interests (in dollars per share)									$ 50
RRD International, LLC \| Class A Membership Interests
Share-based payments to vendors
Membership Interests granted (in units)										7,604
Value of recent private placement taken as fair value for the grant of the membership interests (in dollars per share)										$ 50
Granted stock options		$ 380,200