Document And Entity Information - USD ($)	12 Months Ended
	Apr. 30, 2019	Jun. 14, 2019	Oct. 31, 2018
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 Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding (in shares)		6,695,221
Entity Public Float			$ 511,024,949
Entity Shell Company	false
Document Type	10-K
Document Period End Date	Apr. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false