Name:	intg_AdditionalGeneralPartnerCompensationPayments
Namespace Prefix:	intg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Percentage of changes in technology fee during the period.

No definition available.

Name:	intg_DecreasesInTechnologyFee
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The period of services that the franchisor has agreed to provide with an option to extend the license agreement for another few years, subject to certain conditions.

No definition available.

Name:	intg_FranchiseAgreementsContingentExtensionPeriod
Namespace Prefix:	intg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The period of services that the franchisor has agreed to provide.

No definition available.

Name:	intg_FranchiseAgreementsExpiryPeriod
Namespace Prefix:	intg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The compensation or fee arrangements such as incentive compensation based on the performance of the general partners compensation payment made during the period.

No definition available.

Name:	intg_GeneralPartnerCompensationPayments
Namespace Prefix:	intg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Maximum percentage of changes in all fee reported during the period.

No definition available.

Name:	intg_MaximumPercentageOfChangesInFees
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Maximum percentage of changes in program fee reported during the period.

No definition available.

Name:	intg_MaximumPercentageOfChangesInProgramFees
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The compensation or fee arrangements such as incentive compensation based on the performance of the general partners minimum compensation payment made during the period.

No definition available.

Name:	intg_MinimumGeneralPartnersCompensationPayments
Namespace Prefix:	intg_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Percentage of program fee payments on hotel gross room revenue paid during the period. The amount of program fee is subject to change.

No definition available.

Name:	intg_PercentageOfProgramFees
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage of minimum royalty payments on hotel gross room revenue paid in fourth year.

No definition available.

Name:	intg_PercentageOfRoyaltyFeesPaymentInFourYears
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage of minimum royalty payments on hotel gross room revenue paid in third year.

No definition available.

Name:	intg_PercentageOfRoyaltyFeesPaymentInThreeYears
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage of minimum royalty payments on hotel gross room revenue paid in second year.

No definition available.

Name:	intg_PercentageOfRoyaltyFeesPaymentInTwoYears
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage of minimum royalty payments on hotel gross room revenue paid in first year.

No definition available.

Name:	intg_PercentageOfRoyaltyFeesPaymentWithInOneYear
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage of technology recaptures charge during the period.

No definition available.

Name:	intg_PercentageOfTechnologyRecaptureCharge
Namespace Prefix:	intg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The amount of initial franchise fees.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 952

-SubTopic 605

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6490825&loc=d3e68606-108044

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 45

-Paragraph 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_InitialFranchiseFees
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Costs incurred in providing technology services. The services may include training, installation, engineering or consulting. Consulting services often include implementation support, software design or development, or the customization or modification of the licensed software.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2(d))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 605

-Section 25

-Paragraph 76

-URI http://asc.fasb.org/extlink&oid=19772080&loc=d3e132428-111767

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 97-2

-Paragraph 63

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.