XML 15 R62.htm IDEA: XBRL DOCUMENT
v3.20.1

Note L - Commitments and Contingencies (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Apr. 30, 2020 | Apr. 30, 2019 | Apr. 30, 2018
Letters of Credit Outstanding, Amount | $ 250,000 |  |
Lessee, Operating Lease, Liability, to be Paid, Total | 86,373,000 |  |
Operating Lease, Expense | 6,900,000 | $ 6,700,000 | $ 6,200,000
Non-cancelable [Member] |  |  |
Lessee, Operating Lease, Liability, to be Paid, Total | 26,200,000 |  |
Reasonably Assured [Member] |  |  |
Lessee, Operating Lease, Liability, to be Paid, Total | 60,200,000 |  |
Owned or Controlled by One Preferred Shareholder [Member] |  |  |
Lessee, Operating Lease, Liability, to be Paid, Total | $ 13,200,000 |  |
Minimum [Member] |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 3 years |  |
Minimum [Member] | Dealership Leases [Member] |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 3 years |  |
Maximum [Member] |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 10 years |  |
Maximum [Member] | Dealership Leases [Member] |  |  |
Lessee, Operating Lease, Term of Contract (Year) | 5 years |  |

X
- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of operating lease expense. Excludes sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918638-209977 + Details
Name: | us-gaap_OperatingLeaseExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=crmt_NonCancelableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=crmt_ReasonablyAssuredMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=crmt_OwnedOrControlledByOnePreferredShareholderMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseContractualTermAxis=crmt_DealershipLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |