v3.21.1

Revenue - Returns and Disaggregation of Revenue (Details)	3 Months Ended
	May 01, 2021	May 02, 2020
Revenue, initial application period, cumulative effect transition
Period of time company allows customers to return merchandise	30 days
Ladies
Revenue, initial application period, cumulative effect transition
Revenue from contracts with customers disaggregated by major product line (as a percent)	29.00%	28.00%
Kids
Revenue, initial application period, cumulative effect transition
Revenue from contracts with customers disaggregated by major product line (as a percent)	20.00%	22.00%
Mens
Revenue, initial application period, cumulative effect transition
Revenue from contracts with customers disaggregated by major product line (as a percent)	18.00%	16.00%
Accessories & Beauty
Revenue, initial application period, cumulative effect transition
Revenue from contracts with customers disaggregated by major product line (as a percent)	17.00%	16.00%
Home & Lifestyle
Revenue, initial application period, cumulative effect transition
Revenue from contracts with customers disaggregated by major product line (as a percent)	8.00%	8.00%
Footwear
Revenue, initial application period, cumulative effect transition
Revenue from contracts with customers disaggregated by major product line (as a percent)	8.00%	10.00%

X

- Definition

Percentage, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

No definition available.

+ Details

Name:	ctrn_PercentageRevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	ctrn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The period of time the Company allows customers to return merchandise.

+ References

No definition available.

+ Details

Name:	ctrn_PeriodCustomersCanReturnMerchandise
Namespace Prefix:	ctrn_
Data Type:	xbrli:durationItemType
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_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_ProductOrServiceAxis=ctrn_LadiesApparelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ctrn_ChildrensApparelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ctrn_MensApparelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ctrn_AccessoriesAndBeautyProductLineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ctrn_HomeAndLifestyleProductLineMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_ProductOrServiceAxis=ctrn_FootwearApparelMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: