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Document and Entity Information (USD $)
 12 Months Ended
Dec. 31, 2013
Mar. 17, 2014
Jun. 28, 2013
Document And Entity Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2013    
Document Fiscal Year Focus 2013    
Document Fiscal Period Focus FY    
Trading Symbol AETI    
Entity Registrant Name American Electric Technologies Inc    
Entity Central Index Key 0001043186    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Smaller Reporting Company    
Entity Public Float     $ 33,648,000
Entity Common Stock, Shares Outstanding   8,271,714