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Acquisitions - Fair Values of Assets Acquired and Liabilities Assumed at Date of Closing - Met- Pro Corporation (Parenthetical) (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Business Combinations [Abstract]
Proceeds from sale of assets held for sale	$ 6,600,000
Proceeds from sale of assets held for sale, closing balance	$ 4,210,000	$ 11,083,000

X

- Definition

Proceeds From Assets Held For Sale

+ References

No definition available.

+ Details

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Namespace Prefix:	cece_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759

+ Details

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Balance Type:	debit
Period Type:	instant

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- Details

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