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Stock Purchase	9 Months Ended
	Sep. 30, 2012
Stock Purchase [Abstract]
Stock Purchase	14. Stock Purchase During the first quarter of 2011, the Company purchased 73,741 shares of CECO stock held by a retiring executive. The shares were purchased at the then current market price of $5.84 for a total transaction value of $430,647 and the shares were immediately retired. 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. No shares were repurchased in the first quarter of 2012 and during the three month period ended June 30, 2012, the Company repurchased and immediately retired 62,519 shares of common stock for $456,000. No shares were repurchased during the three month period ended September 30, 2012, which leaves the maximum number of shares that may yet be purchased at 345,691.

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Stock purchase disclosure.

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