Name:	iehc_DeferralPaymentPeriod
Namespace Prefix:	iehc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

The value of the lump-sum final settlement agreement of the company's outstanding liability to the State of Trade Industry Workers' Compensation Trust for Manufacturers. This payment releases the company of any outstanding liability for workers compensation in a settlement agreement entered into on September 15, 2008.

No definition available.

Name:	iehc_LumpSumSettlementAmountPaidToTrust
Namespace Prefix:	iehc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The monthly payment amount that the company must remit for an assessment of additional workers compensation insurance.

No definition available.

Name:	iehc_MonthlyPaymentAssessment
Namespace Prefix:	iehc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The last monthly payment amount that the company must remit for an assessment of additional workers compensation insurance.

No definition available.

Name:	iehc_MonthlyPaymentForLastMonthAssessement
Namespace Prefix:	iehc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The date of notification of defaut of the Trade Workers' Compensation Trust.

No definition available.

Name:	iehc_NotificationDateOfAssessment
Namespace Prefix:	iehc_
Data Type:	xbrli:dateTimeItemType
Balance Type:	na
Period Type:	duration

The number of months that the company will make monthly payments to the Trade Industry Workers' Compensation Trust for Manufacturers for its workers compensation insurance assessment.

No definition available.

Name:	iehc_NumberOfMonthlyPayment
Namespace Prefix:	iehc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Total amount paid toward the workers compensation insurance assessment as of balance sheet date.

No definition available.

Name:	iehc_WorkersCompensationAssessmentPaidToDate
Namespace Prefix:	iehc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	iehc_WorkersCompensationInsuranceAssessmentDetailsNarrativeAbstract
Namespace Prefix:	iehc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

-Article 4

Name:	us-gaap_DebtInstrumentDecreaseForgiveness
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The increase (decrease) during the reporting period in the amount due for insurance (or actual expenses) to cover the medical expenses and lost income for employees that are injured during the course of doing work-related activities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Name:	us-gaap_IncreaseDecreaseInWorkersCompensationLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Carrying value as of the balance sheet date of obligations and payables pertaining to claims incurred of a workers compensation nature.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.15(a))

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

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph a

-Article 7

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 15

-Subparagraph 5

-Article 9