v3.7.0.1

Sale of Properties (Details) - USD ($)			3 Months Ended
Sale of Properties (Details) - USD ($)	Jun. 26, 2017	Sep. 21, 2016	Jun. 30, 2017
Schedule Of Sale Of Properties [Line Items]
Gain on sale of property			$ 1,496,361
Discontinued Operations, Disposed of by Sale
Schedule Of Sale Of Properties [Line Items]
Gain on sale of property			1,496,363
Bakery Village Urban Renewal Associates \| Discontinued Operations, Disposed of by Sale
Schedule Of Sale Of Properties [Line Items]
Consideration received for discontinued operation		$ 2,200,000
Gain on sale of property		$ 5,247,000
Fawcett Street Limited Partnership \| Discontinued Operations, Disposed of by Sale
Schedule Of Sale Of Properties [Line Items]
Consideration received for discontinued operation	$ 0
Sales price of property and related assets	2,125,000
SLP fee paid			$ 150,000
Repayment of mortgages, other liabilities and closing costs	$ 2,125,000

Amount of special limited partnership (SLP) fee paid for disposal of discontinued operations.

+ References

No definition available.

+ Details

Name:	indi4_DisposalGroupIncludingDiscontinuedOperationPaymentOfFeeOwedNotAccrued
Namespace Prefix:	indi4_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The sales price of partnership assets sold before repayment of partnership debt and satisfaction of other claims against the partnership.

+ References

No definition available.

+ Details

Name:	indi4_FairValueOfAssetsSold
Namespace Prefix:	indi4_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

+ Details

Name:	indi4_ScheduleOfSaleOfPropertiesLineItems
Namespace Prefix:	indi4_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3B
-URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721525-107759

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5C
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=65878427&loc=d3e957-107759

+ Details

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

- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

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

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsDisposedOfBySaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=indi4_BakeryVillageUrbanRenewalAssociatesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=indi4_FawcettStreetLimitedPartnershipMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

INDEPENDENCE TAX CREDIT PLUS LP IV 10-Q