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

- Definition

Optional period of extension upon payment of additional option fees.

+ References

No definition available.

+ Details

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

- Definition

The amount of cash out flow on option fee paid to extend the option period.

+ References

No definition available.

+ Details

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

- Definition

The initial term of the purchase option.

+ References

No definition available.

+ Details

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

- Definition

Represents the sale price of land and related assets.

+ References

No definition available.

+ Details

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

- Definition

Area of land held.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfLand
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow from the acquisition of a piece of land and anything permanently fixed to it, including buildings, structures on it and so forth, and payments to develop real estate assets by adding improvements on or to a parcel of land. Such improvements may include drainage, utilities, subdividing, access, buildings, and any combination of these elements. Including real estate intended to generate income for the owner; excluding real estate acquired for use by the owner.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

+ Details

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

- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

+ References

Reference 1: 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(17))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: 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(a)(19))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: 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(25))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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

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

- Details

Name:	us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=indt_ObligationsForInvestmentsInRealEstateAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=indt_EastGranbyAndWindsorCtSiteMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=indt_MeadowoodLandMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=indt_UndevelopedLandInLehighValleyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=indt_UndevelopedLandAbutsLandInLehighValleyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=indt_UndevelopedLandInOrlandoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=indt_StrattonLandSaleAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=indt_ClosingTakingPlaceInFirstQuarterOf2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=indt_ClosingTakingPlaceByEndOfThirdQuarterOf2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies (Details)	Dec. 01, 2020 USD ($)	Jul. 17, 2020 USD ($) ft² a item	Jun. 24, 2020 USD ($) a ft²	Feb. 03, 2020 USD ($) a	Dec. 10, 2019 USD ($) a	Nov. 30, 2020 USD ($) ft²	Nov. 24, 2020 USD ($) item	Aug. 27, 2020 USD ($) a
Purchase and sale obligations
Area of land to be acquired \| ft²			206,000
Obligations For Investments In Real Estate Assets
Purchase and sale obligations
Purchase obligations						$ 7,946,000
Area of land \| ft²						103,000
East Granby And Windsor Ct Site [Member]
Purchase and sale obligations
Purchase Option Term					1 year
Area of land \| a					280
Option Period Of Extension Upon Payment Of Additional Fees					2 years
Payment of option fee	$ 60,000
East Granby And Windsor Ct Site [Member] \| Minimum
Purchase and sale obligations
Purchase price					$ 6,000
East Granby And Windsor Ct Site [Member] \| Maximum
Purchase and sale obligations
Purchase price					$ 7,950,000
Meadowood Land
Purchase and sale obligations
Purchase Option Term				12 months
Sale price of land				$ 5,400
Area of land \| a				277
Agreement Term of Extension				6 months
Undeveloped land in Lehigh valley
Purchase and sale obligations
Sale price of land			$ 3,100,000
Area of land \| a			18
Undeveloped land abuts land in Lehigh valley
Purchase and sale obligations
Sale price of land								$ 1,100,000
Area of land \| a								5
Undeveloped land in Orlando
Purchase and sale obligations
Sale price of land		$ 5,250,000
Number of planned development buildings \| item		2
Area of land to be acquired \| ft²		195,000
Area of land \| a		14
Stratton Land Sale Agreement
Purchase and sale obligations
Sale price of land							$ 900,000
Number of lots \| item							16
Stratton Land Sale Agreement \| Closing Taking Place in First Quarter of 2021
Purchase and sale obligations
Sale price of land							$ 525,000
Number of lots \| item							9
Stratton Land Sale Agreement \| Closing Taking Place by End of Third Quarter of 2021
Purchase and sale obligations
Sale price of land							$ 375,000
Number of lots \| item							7