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Investment and Mortgage-backed Securities - Amortized cost of mortgage-backed securities by contractual maturity (Details 3) - Mortgage-backed securities $ in Thousands	Mar. 31, 2016 USD ($)
Schedule Of Marketable Securities [Line Items]
Due in one year or less	$ 1,889
Due in more than one year through five years	6,246
Due in more than five years through ten years	5,998
Due in more than ten years	10,686
Total	$ 24,819

Represents the amount of mortgage-backed securities including available for sale and held to maturity at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the amount of mortgage-backed securities including available for sale and held to maturity at cost, net of adjustments, maturing in the next rolling twelve months following the latest balance sheet presented.

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No definition available.

+ Details

Name:	chev_MortgageBackedSecuritiesNextRollingTwelveMonthsAmortizedCostBasis
Namespace Prefix:	chev_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the amount of mortgage-backed securities including available for sale and held to maturity at cost, net of adjustments, maturing after the tenth rolling twelve months following the latest balance sheet presented.

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No definition available.

+ Details

Name:	chev_MortgageBackedSecuritiesRollingAfterYearTenAmortizedCostBasis
Namespace Prefix:	chev_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the amount of mortgage-backed securities including available for sale and held to maturity at cost, net of adjustments, maturing in the sixth rolling twelve months through the tenth rolling twelve months following the latest balance sheet presented.

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No definition available.

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Name:	chev_MortgageBackedSecuritiesRollingYearSixThroughTenAmortizedCostBasis
Namespace Prefix:	chev_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the amount of mortgage-backed securities including available for sale and held to maturity at cost, net of adjustments, maturing in the second rolling twelve months through the fifth rolling twelve months following the latest balance sheet presented.

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No definition available.

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Name:	chev_MortgageBackedSecuritiesRollingYearTwoThroughFiveAmortizedCostBasis
Namespace Prefix:	chev_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents line items 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.

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No definition available.

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Name:	chev_ScheduleOfMarketableSecuritiesLineItems
Namespace Prefix:	chev_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_MortgageBackedSecuritiesMember
Namespace Prefix:
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Period Type:

Cheviot Financial Corp. 10-Q