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Stock Purchase	3 Months Ended
	Mar. 31, 2013
Stock Purchase [Abstract]
Stock Purchase	14. Stock Purchase On August 10, 2011, the Board of Directors of the Company approved a share buyback program authorizing the purchase of up to 0.5 million shares of CECO common stock over an eighteen month period. During the three months ended March 31, 2013 and 2012, the Company did not repurchase any common stock and the program expired in February 2013.

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Stock purchase disclosure.

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