XML 34 R1.htm IDEA: XBRL DOCUMENT v2.4.0.6
Document and Entity Information
6 Months Ended
Mar. 31, 2013
Apr. 15, 2013
Document and Entity Information    
Entity Registrant Name AMCON DISTRIBUTING CO  
Entity Central Index Key 0000928465  
Document Type 10-Q  
Document Period End Date Mar. 31, 2013  
Amendment Flag false  
Current Fiscal Year End Date --09-30  
Entity Current Reporting Status Yes  
Entity Filer Category Smaller Reporting Company  
Entity Common Stock, Shares Outstanding   623,115
Document Fiscal Year Focus 2013  
Document Fiscal Period Focus Q2