CAPITAL LEASE OBLIGATIONS (Details) $ in Thousands	6 Months Ended
Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Capital Lease Obligations [Abstract]
Number of capital lease equipments obligation	2
Expiration period of capital lease obligations	Jun. 30, 2016
Gross book value of capital leased assets	$ 77,000	$ 77,000
Net book value of capital leased assets	$ 28,000	$ 40,000
Minimum [Member]
Capital Lease Obligations [Abstract]
Interest rate capital leases (in hundredths)	7.40%
Maximum [Member]
Capital Lease Obligations [Abstract]
Interest rate capital leases (in hundredths)	8.90%

Represents expiration date of capital lease obligations.

No definition available.

Name:	diri_ExpirationPeriodOfCapitalLeaseObligations
Namespace Prefix:	diri_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Element represents implied interest rate of capital lease.

+ References

No definition available.

+ Details

Name:	diri_InterestRateCapitalLeases
Namespace Prefix:	diri_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents number of capital lease obligations for equipment.

+ References

No definition available.

+ Details

Name:	diri_NumberOfCapitalLeaseObligationsEquipment
Namespace Prefix:	diri_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

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

- Definition

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735

+ Details

Name:	us-gaap_CapitalLeasedAssetsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

+ Details

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

- Details

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- Details

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