Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.10.0.1
Document And Entity Information - shares
9 Months Ended
Jun. 30, 2018
Aug. 08, 2018
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Entity Registrant Name Stellar Biotechnologies, Inc.  
Entity Central Index Key 0001540159  
Current Fiscal Year End Date --09-30  
Entity Filer Category Smaller Reporting Company  
Trading Symbol SBOT  
Entity Common Stock, Shares Outstanding   5,330,715