Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

v3.19.3.a.u2
Document and Entity Information - USD ($)
12 Months Ended
Sep. 30, 2019
Dec. 27, 2019
Mar. 31, 2019
Jan. 02, 2019
Jun. 01, 2018
May 01, 2018
Document And Entity Information            
Entity Registrant Name GULFSLOPE ENERGY, INC.          
Entity Central Index Key 0001341726          
Document Type 10-K          
Document Period End Date Sep. 30, 2019          
Entity File Number 000-51638          
Entity Incorporation, State Code DE          
Amendment Flag false          
Current Fiscal Year End Date --09-30          
Entity Well-known Seasoned Issuer No          
Entity Voluntary Filers No          
Entity Current Reporting Status Yes          
Entity Interactive Data Current Yes          
Entity Filer Category Non-accelerated Filer          
Entity Small Business true          
Entity Emerging Growth Company true          
Entity Ex Transition Period false          
Entity Shell Company false          
Entity Public Float     $ 46,424,568      
Shares held by non-affiliates     635,952,993      
Entity share price     $ 0.073 $ 0.045 $ 0.075 $ 0.065
Entity Common Stock, Shares Outstanding   1,148,609,520        
Document Fiscal Period Focus FY          
Document Fiscal Year Focus 2019