XML 73 R57.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Business Segment Information - Additional Information (Detail) | 6 Months Ended
--- | ---
Jun. 30, 2017 Segment
CECO Group, Inc. [Member] |
Segment Reporting Information [Line Items] |
Number of reportable segments | 3

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=cece_CECOGroupIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |