Name:	iehc_ShareBasedCompensationArrangementByShareBasedPaymentAwardLargeShareholderPurchasePrice
Namespace Prefix:	iehc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The threshold shareholder size (as a percentage of shares outstanding) that requires special treatment when stock options designated as incentive stock options are granted.

No definition available.

Name:	iehc_ShareBasedCompensationArrangementByShareBasedPaymentAwardLargeShareholderThreshold
Namespace Prefix:	iehc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Per the company''s 2011 Equity Incentive Plan, the maximum aggregate fair market value of shares subject to options granted and designated as incentive stock options, and which become exercisable in any calendar year.

No definition available.

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

- References

No definition available.

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

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901