Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($) Customers	Dec. 31, 2018 USD ($) Customers
Summary of Significant Accounting Policies (Textual)
Finished goods	$ 448	$ 753
Research and development	5,239	5,278
Basic deposit coverage limits per owner and customer		250
Costs capitalized in projects in process	8
Foreign currency translation included in general and administrative expense	105	(58)
Foreign currency translation adjustments	$ (183)	$ (357)
Concentration risk, percentage	100.00%	100.00%
Advertising costs	$ 82	$ 120
Noncontrolling interest, Description		Generally, any interest that holds less than 50% of the outstanding voting shares is deemed to be a noncontrolling interest.
Investment in joint venture	3	$ 3
Deferred revenues current	67	75
Revenues related to contract liabilities	$ 5,966	7,954
Operating lease, description	We analyzed our operating leases, and included two material operating leases on our consolidated balance sheets beginning January 1, 2019 which resulted in recording operating lease right-of-use assets and operating lease obligations of approximately $0.9 million.
Pronode Technologies AB [Member]
Summary of Significant Accounting Policies (Textual)
Noncontrolling interest owned by Propoint AB	49.00%
Neonode Technologies AB [Member]
Summary of Significant Accounting Policies (Textual)
Noncontrolling interest owned by Pronode Technologies AB	51.00%
Europe [Member]
Summary of Significant Accounting Policies (Textual)
Net assets (liabilities)	$ 62	7,187
Asia [Member]
Summary of Significant Accounting Policies (Textual)
Net assets (liabilities)	1,149	72
UNITED STATES
Summary of Significant Accounting Policies (Textual)
Net assets (liabilities)	2,858	$ 2,537
Sweden [Member] \| Euro [Member]
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	100
Japan [Member] \| Yen [Member]
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	10,000
Korea [Member] \| Won [Member]
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	50,000
Taiwan [Member] \| Taiwan Dollar [Member]
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	$ 3,000
Sales Revenue, Net [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	10.00%	10.00%
Revenues related to contract liabilities	$ 75,000	$ 1,200
Accounts Receivable [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	72.00%	67.00%
Number of customers \| Customers	3	4
Airbar Sales [Member]
Summary of Significant Accounting Policies (Textual)
Inventory reserve amount	$ 800	$ 1,000
Inventory description	Since the sale of AirBars has been lower than expected, a major part of the inventory at the partner remained unused when the due date of the bank guarantee neared and Neonode therefore agreed that the partner should keep inventory for the production of 20,000 AirBars and the rest be purchased by us. The inventory value of these purchases has been fully reserved.
Hewlett Packard [Member] \| Sales Revenue, Net [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	38.00%	35.00%
Epson [Member] \| Sales Revenue, Net [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	16.00%	14.00%
Canon [Member] \| Sales Revenue, Net [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage		12.00%
Alpine [Member] \| Sales Revenue, Net [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	15.00%

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