Represents the amount of assets purchased under the agreement.

No definition available.

Name:	idsa_AmountOfAssetsPurchasedUnderAgreement
Namespace Prefix:	idsa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the amount payable in equal monthly installments under the agreement.

+ References

No definition available.

+ Details

Name:	idsa_AmountPayableInEqualMonthlyInstallmentsUnderAgreement
Namespace Prefix:	idsa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the percentage of Interest rate Upon a default of promissory note.

+ References

No definition available.

+ Details

Name:	idsa_DebtInstrumentInterestRatePercentageUponDefault
Namespace Prefix:	idsa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of agreements.

+ References

No definition available.

+ Details

Name:	idsa_NumberOfAgreements
Namespace Prefix:	idsa_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of consecutive monthly payments to be made.

+ References

No definition available.

+ Details

Name:	idsa_NumberOfConsecutiveMonthlyPaymentsToBeMade
Namespace Prefix:	idsa_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Operating Leases, Rent Expense, Gross

+ References

No definition available.

+ Details

Name:	idsa_OperatingLeasesRentExpenseGross
Namespace Prefix:	idsa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the initial amount paid at the signing of the agreement.

+ References

No definition available.

+ Details

Name:	idsa_PaymentOfInitialAmountAtSigningOfAgreement
Namespace Prefix:	idsa_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of Stock Owned by Investor

+ References

No definition available.

+ Details

Name:	idsa_PercentageOfStockOwnedByInvestor
Namespace Prefix:	idsa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Sale Leaseback Transaction, Area of Real Estate Property

+ References

No definition available.

+ Details

Name:	idsa_SaleLeasebackTransactionAreaOfRealEstateProperty
Namespace Prefix:	idsa_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Sale Leaseback Transaction, Reimbursement Percentage of Property Taxes

+ References

No definition available.

+ Details

Name:	idsa_SaleLeasebackTransactionReimbursementPercentageOfPropertyTaxes
Namespace Prefix:	idsa_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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

- 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

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

+ 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 210.9-03.10(3))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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 210.7-03.3)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

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

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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 210.7-03.17)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(3),(4))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount for notes payable (written promise to pay), due to related parties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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 210.7-03.17)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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

- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ 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=109223946&loc=d3e3213-108585

+ Details

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

- Definition

The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

+ Details

Name:	us-gaap_ProceedsFromRepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of the monthly rental payments due under the lease entered into in connection with the transactions involving the sale of property to another party and the lease of the property back to the seller.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77913982&loc=d3e50796-112755

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=idsa_FormerChairmanAndChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=idsa_AffiliatedEntityLkPropertyInvestmentsLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=idsa_IsaRealEstateLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=idsa_KAndRLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_AffiliatedEntityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=idsa_HandlerAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=idsa_CraneAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=idsa_GradeLane7100LlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=idsa_KAndRLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=idsa_KletterNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=idsa_KletterEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=idsa_FirstAmendmentsToKletterNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

RELATED PARTY TRANSACTIONS (Narrative) (Details)					3 Months Ended		6 Months Ended		60 Months Ended
RELATED PARTY TRANSACTIONS (Narrative) (Details)	Apr. 14, 2019 USD ($)	Nov. 01, 2017 USD ($) mo	Jun. 23, 2017 USD ($) item	Apr. 30, 2015 USD ($) a	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2019 USD ($)	Mar. 01, 2019 USD ($)	Feb. 28, 2019	Dec. 31, 2018 USD ($)	Feb. 29, 2016 USD ($)
Related Party Transaction [Line Items]
Notes Payable, Related Parties			$ 129,000.0
Amount paid as down payment under the agreement							$ 227,000	$ 104,000
Rent expense, gross					$ 220,800	$ 157,400	$ 394,500	$ 311,000.0
Former Chairman and Chief Executive Officer [Member]
Related Party Transaction [Line Items]
Percentage shares owned (in excess)					20.00%		20.00%
Affiliated Entity, LK Property Investments, LLC [Member]
Related Party Transaction [Line Items]
Lease renewal, option period	4 months
Monthly rental payments	$ 7,500			$ 3,000.0
Rent expense, gross	$ 30,000.0
Reimbursement percentage of property taxes				40.00%
ISA Real Estate LLC \| Affiliated Entity, LK Property Investments, LLC [Member]
Related Party Transaction [Line Items]
Number of acres \| a				4.4
K and R, LLC [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Notes Payable, Related Parties					$ 1,004,000		$ 1,004,000						$ 1,536,000	$ 1,500,000
Due from Related Parties														32,000.0
Due to Related Parties														500,000.0
K and R, LLC [Member] \| Handler Agreement
Related Party Transaction [Line Items]
Number of agreements \| item			2
Amount of assets purchased under the agreement			$ 90,000.0
Amount paid as down payment under the agreement			$ 9,000.0
Term period of promissory note			24 months
Face principal amount			$ 81,000.0
Amount payable in equal monthly installments under the agreement			$ 3,400
Interest rate Upon a default of promissory note (as a percentage)			1.00%
K and R, LLC [Member] \| Crane Agreement
Related Party Transaction [Line Items]
Amount of assets purchased under the agreement			$ 60,000.0
Amount paid as down payment under the agreement			$ 12,000.0
Term period of promissory note			24 months
Face principal amount			$ 48,000.0
Amount payable in equal monthly installments under the agreement			$ 2,000.0
Interest rate Upon a default of promissory note (as a percentage)			1.00%
Grade Lane 7100, LLC [Member] \| K and R, LLC [Member]
Related Party Transaction [Line Items]
Borrowings,net of repayments									$ 1,500,000
Face principal amount		$ 345,800
Payment of initial amount at the signing of the agreement		$ 100,000.0
Number of consecutive monthly payments \| mo		6
Amount payable in equal monthly installments under the agreement		$ 41,000.0
Kletter Notes [Member] \| Unsecured Debt [Member] \| K and R, LLC [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Notes Payable, Related Parties														$ 620,300
Debt Instrument, Interest Rate, Stated Percentage														5.00%
Kletter Notes [Member] \| Unsecured Debt [Member] \| Grade Lane 7100, LLC [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Notes Payable, Related Parties														$ 883,800
Kletter Notes [Member] \| Unsecured Debt [Member] \| Kletter Estate [Member] \| Affiliated Entity [Member]
Related Party Transaction [Line Items]
Notes Payable, Related Parties														$ 1,500,000
First amendments to Kletter Notes [Member]
Related Party Transaction [Line Items]
One-time prepayment of principal amount										$ 500,000.0	$ 500,000.0
Debt Instrument, Interest Rate, Stated Percentage											7.00%	5.00%