Document And Entity Information - shares	3 Months Ended
	Jul. 31, 2018	Sep. 04, 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 Common Stock, Shares Outstanding (in shares)		6,883,306
Document Type	10-Q
Document Period End Date	Jul. 31, 2018
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false