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Controlling Shareholder (Details) (Tontine [Member])	Feb. 21, 2013
Tontine [Member]
Related Party Transaction [Line Items]
Registered Shares	8,562,409

X

- Definition

No authoritative reference available.

+ References

No definition available.

+ Details

Name:	iesc_RegisteredShares
Namespace Prefix:	iesc_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

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