XML 14 R1.htm IDEA: XBRL DOCUMENT v3.7.0.1
Document and Entity Information - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Mar. 22, 2017
Jun. 30, 2016
Document And Entity Information      
Entity Registrant Name ACORN ENERGY, INC.    
Entity Central Index Key 0000880984    
Document Type 10-K    
Document Period End Date Dec. 31, 2016    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity a Well-known Seasoned Issuer No    
Entity a Voluntary Filer No    
Entity's Current Reporting Status Yes    
Entity Filer Category Smaller Reporting Company    
Entity Public Float     $ 5,300
Entity Common Stock, Shares Outstanding   29,367,019  
Trading Symbol ACFN    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2016