Area of real estate that have been pledged as collateral for borrowings.

No definition available.

Name:	indt_AreaOfRealEstatePledgedAsCollateral
Namespace Prefix:	indt_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Threshold number of industrial unencumbered properties under the debt instrument.

+ References

No definition available.

+ Details

Name:	indt_DebtInstrumentCovenantThresholdNumberOfIndustrialUnencumberedProperties
Namespace Prefix:	indt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The fixed charge coverage ratio to be maintained under the debt instrument covenant.

+ References

No definition available.

+ Details

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Namespace Prefix:	indt_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum borrowing base under the debt instrument covenant.

+ References

No definition available.

+ Details

Name:	indt_DebtInstrumentMinimumBorrowingBase
Namespace Prefix:	indt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of maximum secured leverage ratio of total secured indebtedness total assets under the debt instrument covenant.

+ References

No definition available.

+ Details

Name:	indt_DebtInstrumentPercentageOfMaximumSecuredLeverageRatioOfTotalSecuredDebtToAssets
Namespace Prefix:	indt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Renewal term under the debt instrument arrangement.

+ References

No definition available.

+ Details

Name:	indt_DebtInstrumentRenewalTerm
Namespace Prefix:	indt_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of extension to the debt instrument term.

+ References

No definition available.

+ Details

Name:	indt_DebtInstrumentTermNumberOfExtension
Namespace Prefix:	indt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Threshold percentage of maximum leverage ratio of total indebtedness total assets under the debt instrument covenant.

+ References

No definition available.

+ Details

Name:	indt_DebtInstrumentThresholdPercentageOfMaximumLeverageRatioOfTotalDebtToAssets
Namespace Prefix:	indt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of aggregate increases in the shareholder's equity for calculation of consolidated tangible net worth under the debt instrument.

+ References

No definition available.

+ Details

Name:	indt_LineOfCreditFacilityConsolidatedTangibleNetWorthPercentageOfIncreaseInEquity
Namespace Prefix:	indt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The aggregate borrowing capacity under the credit facility, consisting of the maximum borrowing capacity plus the contingent increase, if any one or more of the existing banks or new banks agree to provide such increased commitment amount.

+ References

No definition available.

+ Details

Name:	indt_LineOfCreditFacilityContingentIncreaseAggregateMaximumBorrowingCapacity
Namespace Prefix:	indt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The number of buildings, such as office or industrial/warehouse, used as collateral for a debt instrument.

+ References

No definition available.

+ Details

Name:	indt_NumberOfBuildingsUsedAsCollateral
Namespace Prefix:	indt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of purchase price of real estate acquisitions.

+ References

No definition available.

+ Details

Name:	indt_PercentageOfPurchasePriceOfRealEstateAcquisitions
Namespace Prefix:	indt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of tangible net worth required to be maintained.

+ References

No definition available.

+ Details

Name:	indt_TangibleNetWorthPercentage
Namespace Prefix:	indt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- 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

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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

- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Revolving Credit Agreements (Details)	Aug. 09, 2021 USD ($) property item	Mar. 17, 2021 USD ($) ft² building	Aug. 09, 2022 USD ($)	Jun. 30, 2021 USD ($)
Industrial/warehouse building
Revolving credit agreement
Area of collateralized properties (in square feet) \| ft²		68,000
International Drive Buildings [Member]
Revolving credit agreement
Number of buildings used as collateral \| building		2
Area of collateralized properties (in square feet) \| ft²		283,000
Office Or Flex Buildings [Member]
Revolving credit agreement
Number of buildings used as collateral \| building		8
Area of collateralized properties (in square feet) \| ft²		224,000
Sunport Building [Member]
Revolving credit agreement
Number of buildings used as collateral \| building		2
Area of collateralized properties (in square feet) \| ft²		50,000
New Credit Facility
Revolving credit agreement
Maximum borrowing capacity			$ 100,000,000
Term of debt	3 years
Number of extension term \| item	2
Renewal term	1 year
Increased line of credit	$ 250,000,000
Tangible net worth percentage	75.00%
Percentage of aggregate increases in the shareholder's equity	75.00%
Threshold percentage of maximum leverage ratio of total indebtedness total assets	60.00%
New Credit Facility \| Through March 31, 2022
Revolving credit agreement
Fixed charge coverage ratio	1.25
New Credit Facility \| Through June 30, 2022
Revolving credit agreement
Fixed charge coverage ratio	1.50
New Credit Facility \| Through December 31, 2022
Revolving credit agreement
Percentage of maximum secured leverage ratio of total secured indebtedness total assets	50.00%
Minimum borrowing base	$ 30,000,000
New Credit Facility \| Through March 31, 2023
Revolving credit agreement
Percentage of maximum secured leverage ratio of total secured indebtedness total assets	40.00%
New Credit Facility \| From December 31, 2022 to December 31, 2023
Revolving credit agreement
Minimum borrowing base	$ 50,000,000
New Credit Facility \| From June 30, 2021 to December 31, 2023
Revolving credit agreement
Threshold number of industrial unencumbered properties \| property	5
New Credit Facility \| Through December 31, 2023
Revolving credit agreement
Minimum borrowing base	$ 100,000,000
Threshold number of industrial unencumbered properties \| property	8
New Credit Facility \| LIBOR
Revolving credit agreement
Variable interest rate margin (as a percent)	1.20%
Webster Credit Line
Revolving credit agreement
Maximum borrowing capacity		$ 19,500,000
Increased line of credit		$ 35,000,000
Standby letters of credit aggregate amount				$ 3,097,000
Outstanding borrowings under credit line				0
Webster Credit Line \| LIBOR
Revolving credit agreement
Variable interest rate margin (as a percent)		2.50%
Acquisition Credit Line
Revolving credit agreement
Maximum borrowing capacity		$ 15,000
Purchase price of real estate acquisitions (as a percent)		65.00%
Outstanding borrowings under credit line				$ 0
Acquisition Credit Line \| LIBOR
Revolving credit agreement
Variable interest rate margin (as a percent)		2.75%