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Item 5. Other Information (Details Textual) item in Thousands | 3 Months Ended
--- | ---
Jul. 31, 2023 item
Issuer Rule 10b5-1, Adopted or Terminated | 0

X
- Definition Number of directors that adopted or terminated Issuer Rule 10b5-1 plans. + References No definition available. + Details
Name: | crmt_IssuerRule10b51AdoptedOrTerminated
Namespace Prefix: | crmt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration