STOCK-BASED COMPENSATION (Details 2) (USD $)	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Share Based Compensation Arrangement By Share Based Payment Award Non Vested Options Outstanding Number	254,306	320,971
Granted - Number of Options	57,200	78,000
Vested - Number of Options	(120,150)	(144,665)
Cancelled - Number of Options	(29,206)	0
Non-vested, end of period - Number of Options	162,150	254,306
Share Based Compensation Arrangement By Share Based Payment Award Non Vested Options Outstanding Weighted Average Exercise Price	$ 4.32	$ 3.06
Granted - Wgtd. Avg. Exercise Price	$ 5.03	$ 6.01
Vested - Wgtd. Avg. Exercise Price	$ 1.43	$ 1.77
Cancelled - Wgtd. Avg. Exercise Price	$ 4.83
Non-vested, end of period - Wgtd. Avg. Exercise Price	$ 3.82	$ 4.32

The number of shares under options cancelled during the period.

No definition available.

Name:	iec_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonVestedOptionsCancelledInPeriod
Namespace Prefix:	iec_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were cancelled.

No definition available.

Name:	iec_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonVestedOptionsCancelledWeightedAverageExercisePrice
Namespace Prefix:	iec_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

The number of non-vested equity-based payment options, that validly exist and are outstanding as of the balance sheet date.

No definition available.

Name:	iec_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonVestedOptionsOutstandingNumber
Namespace Prefix:	iec_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan which is non vested.

No definition available.

Name:	iec_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonVestedOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix:	iec_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

The number of shares under options vested during the period.

No definition available.

Name:	iec_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod
Namespace Prefix:	iec_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Weighted average price at which grantees can acquire the shares reserved for issuance on vested stock options awarded.

No definition available.

Name:	iec_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodWeightedAverageExercisePrice
Namespace Prefix:	iec_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Gross number of share options (or share units) granted during the period.

No definition available.

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

No definition available.

Name:	us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration