Additional Income Tax Expense Benefit

No definition available.

Name:	cece_AdditionalIncomeTaxExpenseBenefit
Namespace Prefix:	cece_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Income taxes.

+ References

No definition available.

+ Details

Name:	cece_IncomeTaxesLineItems
Namespace Prefix:	cece_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Liability for deferred taxes on undistributed foreign earnings.

+ References

No definition available.

+ Details

Name:	cece_LiabilityForDeferredTaxesOnUndistributedForeignEarnings
Namespace Prefix:	cece_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Minimum Likelihood For Recognized Income Tax Positions

+ References

No definition available.

+ Details

Name:	cece_MinimumLikelihoodForRecognizedIncomeTaxPositions
Namespace Prefix:	cece_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

State And Local Net Operating Loss Carry Forwards Year End

+ References

No definition available.

+ Details

Name:	cece_StateAndLocalNetOperatingLossCarryForwardsYearEnd
Namespace Prefix:	cece_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

State And Local Net Operating Loss Carry Forwards Year Start

+ References

No definition available.

+ Details

Name:	cece_StateAndLocalNetOperatingLossCarryForwardsYearStart
Namespace Prefix:	cece_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 20
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314

+ Details

Name:	us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Tax year that remains open to examination under enacted tax laws, in CCYY format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

+ Details

Name:	us-gaap_OpenTaxYear
Namespace Prefix:	us-gaap_
Data Type:	us-types:gYearListItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319

+ Details

Name:	us-gaap_OperatingLossCarryforwards
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319

+ Details

Name:	us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeTaxAuthorityAxis=cece_StateAndForeignAuthoritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Line Items]
Liability for deferred taxes on undistributed foreign earnings	$ 0.7
State and local net operating loss carry forwards year start	2020
State and local net operating loss carry forwards year end	2039
Valuation reserve	$ 5.8	$ 5.5
Additional income tax expense (benefit)	$ 0.2	1.5	$ 1.0
Income tax positions recognized, minimum percentage	50.00%
Expense for interest and penalties	$ 0.1	$ 0.3	$ 0.3
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Net operating loss carry forward	35.9
Overseas Jurisdictions [Member]
Income Taxes [Line Items]
Net operating loss carry forward	$ 10.4
State and Foreign Authorities [Member]
Income Taxes [Line Items]
Open tax years	2014 2015 2016 2017 2018 2019