Quarterly report pursuant to Section 13 or 15(d)

Cover

v3.20.4
Cover - shares
3 Months Ended
Dec. 31, 2020
Feb. 12, 2021
Cover [Abstract]    
Entity Registrant Name GEE Group Inc.  
Entity Central Index Key 0000040570  
Document Type 10-Q  
Amendment Flag false  
Current Fiscal Year End Date --09-30  
Entity Small Business true  
Entity Shell Company false  
Entity Emerging Growth Company false  
Entity Current Reporting Status Yes  
Document Period End Date Dec. 31, 2020  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2021  
Entity Common Stock Shares Outstanding   17,667,123
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes