Trademarks (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Trademarks
Trademarks, net	$ 39,821	$ 40,683
Amortization of trademarks	932us-gaap_AmortizationOfIntangibleAssets	995us-gaap_AmortizationOfIntangibleAssets	1,491us-gaap_AmortizationOfIntangibleAssets
Payment for acquisition of trademark
Trademark registration and renewal fees capitalized	70	19,053	18,026
Trademarks
Trademarks
Accumulated amortization	(16,794)	(15,862)
Trademarks, net	39,821	40,683
Amortization of trademarks	932	995	1,491
Expected amortization expense
2016	800
2017	800
2018	500
2019	200
2020	100
Acquired Trademarks
Trademarks
Trademarks, gross	47,994	47,994
Other Trademarks
Trademarks
Trademarks, gross	$ 8,621	$ 8,551
Other Trademarks \| Weighted average
Payment for acquisition of trademark
Amortization period	9 years 4 months 24 days

The gross carrying amount as of the balance sheet date of finite-lived and indefinite-lived trademarks.

No definition available.

Name:	chke_FiniteAndIndefiniteLivedTrademarksGross
Namespace Prefix:	chke_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The net carrying amount as of the balance sheet date of finite-lived and indefinite-lived trademarks.

+ References

No definition available.

+ Details

Name:	chke_FiniteAndIndefiniteLivedTrademarksNet
Namespace Prefix:	chke_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	chke_IntangibleAssetsLineItems
Namespace Prefix:	chke_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

+ Details

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

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References