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Document And Entity Information - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2017 | Jun. 08, 2017 | Oct. 31, 2016
Document Information [Line Items] |  |  |
Entity Registrant Name | AMERICAS CARMART INC |  |
Entity Central Index Key | 0000799850 |  |
Trading Symbol | crmt |  |
Current Fiscal Year End Date | --04-30 |  |
Entity Filer Category | Accelerated Filer |  |
Entity Current Reporting Status | Yes |  |
Entity Voluntary Filers | No |  |
Entity Well-known Seasoned Issuer | No |  |
Entity Common Stock, Shares Outstanding (in shares) |  | 7,548,969 |
Entity Public Float |  |  | $ 320,114,285
Document Type | 10-K |  |
Document Period End Date | Apr. 30, 2017 |  |
Document Fiscal Year Focus | 2017 |  |
Document Fiscal Period Focus | FY |  |
Amendment Flag | false |  |

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