Business Combination - Preliminary Valuation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended
	Feb. 14, 2013	Dec. 31, 2013	Dec. 31, 2012	Feb. 15, 2013
Business Acquisition Acro [Member]
Business Acquisition [Line Items]
Receivable Owed to IES	$ 1,042		$ 2,263
Cash Purchase Consideration		828
Fair Value of Contingent Consideration				665
Total Consideration Transferred		4,798
Business Acquistion Miscor [Member]
Business Acquisition [Line Items]
Cash Purchase Consideration		4,364
Total Consideration Transferred		16,217
IES Shares provided in MISCOR consideration		2,795,577
Value of IES Shares provided in MISCOR consideration		$ 11,853