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Accounts Payable and Accrued Expenses - Summary of Activity of Current Portion of Earnout Liability (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Payables and Accruals [Abstract] |  |
Earnout accrued at beginning of year | $ 1,743 | $ 0
Fair value of earnout at acquisition date (see Note 15) | 0 | 553
Fair value adjustment | 704 | 1,190
Payments | (1,410) | 0
Earnout accrued at end of year | $ 1,037 | $ 1,743

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- Definition Earnout Accrued. + References No definition available. + Details
Name: | cece_EarnoutAccrued
Namespace Prefix: | cece_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Earnout payments. + References No definition available. + Details
Name: | cece_EarnoutPayments
Namespace Prefix: | cece_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Fair value adjustments to earnout liabilities. + References No definition available. + Details
Name: | cece_FairValueAdjustmentsToEarnoutLiabilities
Namespace Prefix: | cece_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Fair value of earnout at acquisition date. + References No definition available. + Details
Name: | cece_FairValueOfEarnoutLiabilitiesAtAcquisitionDate
Namespace Prefix: | cece_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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