Stockholders' Equity (Details Textual) - USD ($)		1 Months Ended		12 Months Ended
	Oct. 13, 2015	Aug. 31, 2017	Aug. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Oct. 06, 2017	Mar. 31, 2009
Stockholders Equity (Textual)
Common stock, shares authorized				100,000,000	100,000,000		100,000,000
Net proceeds from issuance of common stock				$ 9,079,000	$ 7,913,000	$ 5,422,000
Warrants exercised				0
Employee Investor Shares [Member]
Stockholders Equity (Textual)
Shares price per share			$ 1.17
Issuance of common stock, shares			427,352
Net proceeds from issuance of common stock			$ 500,000
Outside Investor Shares [Member]
Stockholders Equity (Textual)
Shares price per share			$ 1.00
Issuance of common stock, shares			4,600,000
Net proceeds from issuance of common stock			$ 4,600,000
Pre-Funded Warrant Shares [Member]
Stockholders Equity (Textual)
Securities purchase agreement, description			(iii) up to 3,600,000 Pre-Funded Warrant Shares issuable upon exercise of the Pre-Funded Warrants for which Neonode received $3,564,000 pre-funded in gross proceeds. The Pre-Funded Warrants were issued to certain outside investors whose purchase of shares of Neonode common stock would make them the beneficial owners of more than 9.99% of the outstanding common stock of Neonode. Each of the Pre-Funded Warrants were pre-funded upon closing of the private placement at $0.99 per Pre-Funded Warrant Share and have an exercise price of $0.01 per Pre-Funded Warrant Share. The Pre-Funded Warrants are immediately exercisable upon issuance and will not expire prior to exercise.
Series B Preferred Stock [Member]
Stockholders Equity (Textual)
Preferred stock conversion ratio per share of common stock								132.07
Preferred stock, liquidation preference				$ 0.001	$ 0.001
Preferred stock voting rights description				The holders of shares of Series B Preferred stock have one vote for each share of Series B Preferred stock held by them.
Preferred stock conversion description				Each share of Series B Preferred stock was convertible into one share of our common stock.
Issuance of common stock, shares
Securities Purchase Agreements [Member]
Stockholders Equity (Textual)
Shares price per share		$ 1.00
Warrants issued to purchase shares of common stock				3,250,000
Securities purchase agreement, description		The 2017 Warrants will become exercisable on August 8, 2018, and will expire on August 8, 2020.	(iii) up to 3,600,000 shares issuable upon exercise of warrants (the "Pre-Funded Warrants") by outside investors for which we received $3,564,000 pre-funded in proceeds and will receive up to $36,000 in proceeds upon future cash exercises.	The 2017 Warrants will become exercisable on August 8, 2018, and will expire on August 8, 2020.
Exercise price				$ 2.00
Proceeds from issuance of warrants		$ 9,750,000	$ 4,800,000	$ 6,500,000
Issuance of common stock, shares		9,750,000	8,627,352
Net proceeds from issuance of common stock		$ 9,100,000	$ 7,900,000
Common Stock [Member]
Stockholders Equity (Textual)
Issuance of common stock, shares				9,750,000	5,027,000	3,200,000
Warrant [Member]
Stockholders Equity (Textual)
Additional warrants issued to purchase shares of common stock					80,000
Common stock purchased by exercise of warrants					11,565
Direct offering costs	$ 700,000
Price per share	$ 1.90
Cash	$ 5,400,000
Stock issued for cash	$ 6,100,000
Warrant [Member] | Securities Purchase Agreements [Member]
Stockholders Equity (Textual)
Warrants issued to purchase shares of common stock			4,313,676
Exercise price			$ 1.12