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Document and Entity Information - USD ($)
 12 Months Ended
Sep. 30, 2018
Nov. 30, 2018
Mar. 31, 2018
Document And Entity Information      
Entity Registrant Name RCI HOSPITALITY HOLDINGS, INC.    
Entity Central Index Key 0000935419    
Document Type 10-K    
Document Period End Date Sep. 30, 2018    
Amendment Flag false    
Current Fiscal Year End Date --09-30    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filer No    
Entity Current Reporting Status No    
Entity Filer Category Accelerated Filer    
Entity Small Business Flag false    
Entity Emerging Growth Company false    
Entity Ex Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 254,986,999
Entity Common Stock, Shares Outstanding   9,704,600  
Trading Symbol RICK    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2018