v3.3.1.900
Document and Entity Information - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Mar. 07, 2016
Jun. 30, 2015
Document And Entity Information      
Entity Registrant Name Applied Optoelectronics, Inc.    
Entity Central Index Key 0001158114    
Document Type 10-K    
Document Period End Date Dec. 31, 2015    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Is Entity a Well-known Seasoned Issuer? No    
Is Entity a Voluntary Filer? No    
Is Entity's Reporting Status Current? Yes    
Entity Filer Category Non-accelerated Filer    
Entity Public Float     $ 250,600
Entity Common Stock, Shares Outstanding   17,055,597  
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2015