Document And Entity Information - USD ($)	12 Months Ended
	Apr. 30, 2022	Jul. 05, 2022	Oct. 31, 2021
Document Information [Line Items]
Entity Central Index Key	0000799850
Entity Registrant Name	AMERICAS CAR-MART INC
Amendment Flag	false
Current Fiscal Year End Date	--04-30
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Document Type	10-K
Document Annual Report	true
Document Period End Date	Apr. 30, 2022
Document Transition Report	false
Entity File Number	0-14939
Entity Incorporation, State or Country Code	TX
Entity Tax Identification Number	63-0851141
Entity Address, Address Line One	1805 North 2nd Street, Suite 401
Entity Address, City or Town	Rogers
Entity Address, State or Province	AR
Entity Address, Postal Zip Code	72756
City Area Code	479
Local Phone Number	464-9944
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	CRMT
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 712,616,493
Entity Common Stock, Shares Outstanding		6,368,788
Auditor Name	GRANT THORNTON LLP
Auditor Location	Tulsa, Oklahoma
Auditor Firm ID	248