Mortgages notes payable, value.

No definition available.

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Namespace Prefix:	INTG_
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Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	na
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- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Mortgage loan related to property sales in noncash investing and financing activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
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+ Details

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

- Definition

The cash inflow from bank borrowing during the year.

+ References

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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SUBSEQUENT EVENT (Details Narrative) - USD ($)				9 Months Ended
SUBSEQUENT EVENT (Details Narrative) - USD ($)	Oct. 14, 2021	Oct. 14, 2021	Feb. 03, 2017	Mar. 31, 2021	Jan. 31, 2017
Subsequent Event [Line Items]
Debt interest rate					5.275%
Debt maturity date			Beginning in February 2017, the loan began to amortize over a thirty-year period through its maturity date of January 2024.	The mezzanine interest only loan had an interest rate of 9.75% per annum and a maturity date of January 1, 2024.
Subsequent Event [Member]
Subsequent Event [Line Items]
Mortgages notes payable, value	$ 15,900,000	$ 15,900,000
Mortgages on notes payable	$ 28,800,000
Proceeds from bank debt		$ 12,938,000
Debt interest rate	2.95%	2.95%
Debt instrument term	10 years
Debt maturity date		November 2031