Name:	dpsi_LesseeOperatingLeasesLiabilityPaymentsDueYearThree
Namespace Prefix:	dpsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Present value of minimum lease payments for sale-leaseback transactions accounted for using the deposit method or as a financing.

No definition available.

Name:	dpsi_PresentValueOfFutureMinimumLeasePaymentSaleLeasebackTransactions
Namespace Prefix:	dpsi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

Name:	dpsi_ScheduleOfTheMaturityOfOperatingLeaseLiabilitiesAbstract
Namespace Prefix:	dpsi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of lessee's undiscounted obligation for lease payment for operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

Name:	us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The receivable or note face amount less the unamortized discount or premium.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399