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Note A - Organization and Business (Details) | 9 Months Ended
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Jan. 31, 2014
Disclosure Text Block [Abstract] |
Number of Operating Subsidiaries | 2
Number of Stores | 130

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- Definition Number of Operating Subsidiaries + References No definition available. + Details
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Namespace Prefix: | crmt_
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Period Type: | duration

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

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- Definition Represents the number of stores. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant