Refers to ownership percentage interest in facilities owned by entities controlled by company's stockholders.

No definition available.

Name:	chef_OwnershipInterestInFacilitiesOwnedByEntitiesControlledByCompanysStockholders
Namespace Prefix:	chef_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

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

- 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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

No definition available.

+ Details

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

- Definition

Amount of expense for salary and wage arising from service rendered by nonofficer and officer employees. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=chef_AffiliatedEntity3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=chef_ImmediateFamilyMemberOfManagementOrPrincipalOwner3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=chef_AffiliatedEntity1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_VicePresidentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_BoardOfDirectorsChairmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=chef_JohnPappasMember
Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_ImmediateFamilyMemberOfManagementOrPrincipalOwnerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Parties - Narrative (Details) - USD ($)	3 Months Ended		4 Months Ended	9 Months Ended
Related Parties - Narrative (Details) - USD ($)	Sep. 28, 2018	Sep. 29, 2017	Apr. 20, 2018	Sep. 28, 2018	Sep. 29, 2017
Related Party Transaction [Line Items]
Ownership interest in facilities owned by entities controlled by company's stockholders				100.00%
Expenses related to transactions with related parties	$ 134,000	$ 134,000		$ 400,000	$ 400,000
ConAgra Foods
Related Party Transaction [Line Items]
Purchase of products	$ 176,000	191,000		$ 662,000	545,000
J. DeBenedetti and T. Lincoln \| Old World Provisions
Related Party Transaction [Line Items]
Purchase of products		208,000	$ 474,000		636,000
Equity interest in related parties	8.33%			8.33%
Vice President
Related Party Transaction [Line Items]
Compensation to related parties	$ 113,000	99,000		$ 643,000	494,000
Board of Directors Chairman \| John Pappas
Related Party Transaction [Line Items]
Compensation to related parties				0	0
Constantine Papataros
Related Party Transaction [Line Items]
Compensation to related parties	$ 49,000	$ 48,000		$ 134,000	$ 140,000