XML 39 R29.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Note A - Organization and Business (Details Textual) | 3 Months Ended
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Jul. 31, 2018
Number of Operating Subsidiaries | 2

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