Interim Period Reporting (Details) - USD ($) $ in Thousands			1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 06, 2020	Aug. 05, 2020	Jun. 17, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Aug. 07, 2020	Dec. 31, 2019
Interim Period Reporting (Textual)
Net loss				$ (1,612)	$ (1,264)	$ (2,622)	$ (1,837)
Accumulated deficit				(193,142)		(193,142)			$ (190,520)
Net cash used in operating activities						(1,928)	$ (1,475)
Short-term loan facilities, description			Pursuant to the Loan Agreements, each Director made 16,145,000 SEK (Swedish Krona), which is approximately $1.7 million in U.S. dollars, principal amount available to the Company.
Initial drawdown				$ 1,000		$ 1,000
Subsequent Event [Member] | Private Placement [Member]
Interim Period Reporting (Textual)
Sell an aggregate shares of common stock	659,070
Description of shares of common stock	In connection with the Private Placement, Neonode designated (i) 365 shares of its authorized and unissued preferred stock as Series C-1 Preferred Shares by filing a Series C-1 Certificate of Designation of Preferences, Rights and Limitations (the "Series C-1 Certificate of Designation") with the Secretary of State of the State of Delaware and (ii) 4,084 shares of its authorized and unissued preferred stock as Series C-2 Preferred Shares by filing a Series C-2 Certificate of Designation of Preferences, Rights and Limitations (the "Series C-2 Certificate of Designation") with the Secretary of State of the State of Delaware.
Subsequent Event [Member] | Series C-1 Preferred Shares and Series C-2 Preferred Shares [Member]
Interim Period Reporting (Textual)
Description of shares of common stock	The Series C-1 Preferred Shares and Series C-2 Preferred Shares (together, the "Preferred Shares") are convertible into 684,378 shares of Neonode common stock, subject to adjustment and limitations as provided in the Series C-1 Certificate of Designation and the Series C-2 Certificate of Designation. The Series C-1 Preferred Shares and the Series C-2 Preferred Shares have no voting rights, however, under certain circumstances provided therein, the Company may not alter, change or amend the Series C-1 Certificate of Designation and Series C-2 Certificate of Designation without the affirmative vote of a majority of the then outstanding Series C-1 Preferred Shares and Series C-2 Preferred Shares, respectively. The holders of the Preferred Shares are entitled to receive dividends at the rate per share of 5% per annum, payable quarterly and on the conversion date. In the event of any liquidation, dissolution or winding-up of the Company, the holders of the Preferred Shares will participate pari passu with the holders of the Company's common stock, on an as-converted basis.	The Series C-1 Preferred Shares and Series C-2 Preferred Shares are substantially the same, except the conversion of the Series C-2 Preferred Shares requires additional shareholder approval in accordance with Nasdaq listing rules. Ulf Rosberg and Peter Lindell, directors of Neonode, and Urban Forssell the Chief Executive Officer of Neonode (together, the "Insiders") purchased an aggregate of $3.05 million of the Series C-2 Preferred Shares pursuant to the Securities Purchase Agreement.
Registration rights agreement, description	In connection with the Securities Purchase Agreement, Neonode entered into a Registration Rights Agreement (the "Registration Rights Agreement") pursuant to which Neonode will file a registration statement with the SEC relating to the offer and sale by the holders of the Common Shares, and the shares of common stock underlying the Preferred Shares. Pursuant to the Registration Rights Agreement, Neonode is obligated to file the registration statement within 30 calendar days and to use reasonable best efforts to cause the registration statement to be declared effective within 75 calendar days or 105 calendar days in the case of a full review by the SEC. Failure to meet those and related obligations, or failure to maintain the effective registration of the Common Shares and the shares of common stock underlying the Preferred Shares will subject Neonode to payment for liquidated damages.
Subsequent Event [Member] | Series C-1 Preferred Shares and Series C-2 Preferred Shares [Member] | Private Placement [Member]
Interim Period Reporting (Textual)
Description of shares of common stock	In connection with the closing of a private placement, the Company designated (i) 365 shares of its authorized and unissued preferred stock as Series C-1 Preferred Shares by filing a Series C-1 Certificate of Designation of Preferences, Rights and Limitations (the "Series C-1 Certificate of Designation") with the Secretary of State of the State of Delaware and (ii) 4,084 shares of its authorized and unissued preferred stock as Series C-2 Preferred Shares by filing a Series C-2 Certificate of Designation of Preferences, Rights and Limitations (the "Series C-2 Certificate of Designation") with the Secretary of State of the State of Delaware.
Subsequent Event [Member] | Series C-2 Preferred Shares [Member]
Interim Period Reporting (Textual)
Description of shares of common stock		Pursuant to the Securities Purchase Agreement, Neonode agreed to issue an additional 1,034 shares of Series C-2 Preferred Shares to the Directors, Ulf Rosberg and Peter Lindell, to repay an aggregate of $1.03 million of outstanding indebtedness owed to them under Loan Agreements.
Subsequent Event [Member] | Securities Purchase Agreement [Member]
Interim Period Reporting (Textual)
Description of shares of common stock		The Securities Purchase Agreement, Neonode issued a total of 1,611,845 shares of common stock (the "Common Shares") at a price of $6.50 per Common Share, and a total of 3,415 shares with a conversion price of $6.50 per share and a stated value of $1,000 of Series C-1 convertible preferred stock (the "Series C-1 Preferred Shares") and Series C-2 convertible preferred stock (the "Series C-2 Preferred Shares"), for an aggregate purchase price of $13.9 million in gross proceeds.
Subsequent Event [Member] | Directors [Member]
Interim Period Reporting (Textual)
Issue of convertible preferred stock								1,033
Outstanding indebtedness								$ 1,000