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Senior Debt - Summary of Debt (Parenthetical) (Detail)	3 Months Ended
	Mar. 31, 2018
Term Loan [Member]
Debt Instrument [Line Items]
Term loans, year of maturity	2020-09

X

- Definition

Debt instruments maturity month year.

+ References

No definition available.

+ Details

Name:	cece_DebtInstrumentsMaturityMonthYear
Namespace Prefix:	cece_
Data Type:	xbrli:gYearMonthItemType
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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_CreditFacilityAxis=cece_SeniorSecuredTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: