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

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

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- Definition Fair value adjustments to earnout liabilities. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Fair value of earnout at acquisition date. + References No definition available. + Details
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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_
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