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Dispositions - Additional Information (Detail) - Jun. 30, 2015 - USD ($) | Total | Total
--- | --- | ---
Discontinued Operations and Disposal Groups [Abstract] |  |
Total consideration to sale agreement | $ 0 |
Loss on sale of business | $ (917,000) | $ (917,000)

X
- Definition The total amount of consideration pursuant to the Purchase Agreement prior to distributions and adjustments. + References No definition available. + Details
Name: | ceco_SaleAgreementAmount
Namespace Prefix: | ceco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment. + References No definition available. + Details
Name: | us-gaap_GainLossOnSaleOfBusiness
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration