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Interim Period Reporting (Details) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 13, 2015
Aug. 31, 2016
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Interim Period Reporting (Textual)              
Net loss     $ (2,162,000) $ (1,368,000) $ (4,860,000) $ (5,232,000)  
Accumulated deficit     $ (178,609,000)   (178,609,000)   $ (173,749,000)
Working capital (deficit)         3,700,000   $ 1,500,000
Net cash used in operating activities         $ (3,717,000) (4,886,000)  
Issuance of common stock, shares 3,200,000            
Gross proceeds from issuance of shares $ 6,100,000            
Cash received from issuance of shares 5,400,000            
Stock issuance cost $ 700,000            
Common stock available for issuance under shelf registration     1,800,000   1,800,000    
Net proceeds from issuance of common stock         $ 7,911,000  
Share price $ 1.90            
Securities Purchase Agreement [Member]              
Interim Period Reporting (Textual)              
Issuance of common stock   8,627,352     4,313,676    
Net proceeds from issuance of common stock   $ 7,900,000          
Share price     $ 1.12   $ 1.12    
Employee Investor Shares [Member]              
Interim Period Reporting (Textual)              
Issuance of common stock   427,352          
Net proceeds from issuance of common stock   $ 500,000          
Share price   $ 1.17          
Outside Investor Shares [Member]              
Interim Period Reporting (Textual)              
Issuance of common stock   4,600,000          
Net proceeds from issuance of common stock   $ 4,600,000          
Share price   $ 1.00          
Pre Funded Warrant Shares [Member]              
Interim Period Reporting (Textual)              
Securities purchase agreement, description   (iii) up to 3,600,000 shares (the "Pre-Funded Warrant Shares") issuable upon exercise of warrants (the "Pre-Funded Warrants" and, together with the Initial Shares, the "Investor Shares") for which Neonode received $3,564,000 pre-funded in gross proceeds and up to $36,000 in proceeds upon future cash exercises.