Quarterly report pursuant to Section 13 or 15(d)

Cover

v3.21.2
Cover - shares
 9 Months Ended
Jun. 30, 2021
Aug. 10, 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 Jun. 30, 2021  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2021  
Entity Common Stock Shares Outstanding   114,100,455
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Entity File Number 1-05707  
Entity Incorporation State Country Code IL  
Entity Tax Identification Number 36-6097429  
Entity Address Address Line 1 7751 Belfort Parkway  
Entity Address Address Line 2 Suite 150  
Entity Address City Or Town Jacksonville  
Entity Address State Or Province FL  
Entity Address Postal Zip Code 32256  
City Area Code 630  
Local Phone Number 954-0400  
Security 12b Title Common Stock, no par value  
Trading Symbol JOB  
Security Exchange Name NYSEAMER