XML 11 R1.htm IDEA: XBRL DOCUMENT v3.7.0.1
Document And Entity Information - shares
 9 Months Ended
Jan. 31, 2017
Mar. 06, 2017
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 No  
Entity Voluntary Filers No  
Entity Well-known Seasoned Issuer No  
Entity Common Stock, Shares Outstanding (in shares)   7,797,138
Document Type 10-Q  
Document Period End Date Jan. 31, 2017  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q3  
Amendment Flag false