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v2.4.1.9

Note A - Organization and Business (Details) | 12 Months Ended
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Apr. 30, 2015
Disclosure Text Block [Abstract] |
Number of Operating Subsidiaries | 2 crmt_NumberOfOperatingSubsidiaries
Number of Stores | 141 us-gaap_NumberOfStores

X
- Definition Represents the number of operating subsidiaries. + References No definition available. + Details
Name: | crmt_NumberOfOperatingSubsidiaries
Namespace Prefix: | crmt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Represents the number of stores. + References No definition available. + Details
Name: | us-gaap_NumberOfStores
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant