Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
9 Months Ended
Aug. 31, 2018
Oct. 15, 2018
Document and Entity Information [Abstract]    
Entity Registrant Name Stellar Acquisition III Inc.  
Entity Central Index Key 0001665300  
Trading Symbol stlru  
Amendment Flag false  
Current Fiscal Year End Date --11-30  
Document Type 10-Q  
Document Period End Date Aug. 31, 2018  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2018  
Entity Emerging Growth Company true  
Entity Small Business true  
Entity Ex Transition Period false  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   3,961,287