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Number of customer.

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Amount of estimated sales returns.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Amount of allowance for credit loss on accounts receivable.

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The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of environmental remediation costs capitalized. These expenditures may relate to long-lived improvements in operating facilities.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings.

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Description of noncontrolling interest which might include background information, terms of the ownership arrangement, and type and terms of equity interest owned by the noncontrolling interest holders.

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No definition available.

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount of selling, general and administrative expense classified as other.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Summary of Significant Accounting Policies (Details Textual) $ in Thousands	3 Months Ended						6 Months Ended		12 Months Ended
	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Jun. 30, 2019 USD ($) Customers	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) Customers
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	$ 250						$ 250
Allowance for doubtful accounts	19		$ 149				19		$ 149
Costs capitalized in projects in process							8
Foreign currency translation adjustments	26	$ (181)	$ 60	$ 13	$ (336)	$ (94)	(155)	$ (430)
Foreign currency transactions, general and administrative expenses	$ (57)				8		$ 114	(21)
Investment in joint venture					3
Equity ownership percentage	50.00%						50.00%
Advertising costs	$ 29				$ 27		$ 48	$ 70
Noncontrolling interest, description							We consolidate subsidiaries in which we hold, directly or indirectly, more than 50% of the voting rights, and variable interest entities (“VIEs”) in which Neonode is the primary beneficiary.
Corporate income tax rate, description							The corporate income tax rate from 35% to 21% effective January 1, 2018, among other changes.
Sales returns of revenue reconciliation							$ 11
Recognized of Revenues	40						75
Operating lease obligations	$ 900						$ 900
Accounts Receivable [Member]
Summary of Significant Accounting Policies (Textual)
Number of customer \| Customers							4		4
Concentration risk, percentage							70.00%		67.00%
Sales Revenue, Net [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	10.00%				10.00%		10.00%	10.00%
Sales Revenue, Net [Member] \| Hewlett Packard [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	45.00%				29.00%		41.00%	34.00%
Sales Revenue, Net [Member] \| Epson [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	11.00%				14.00%		14.00%	14.00%
Sales Revenue, Net [Member] \| Alpine [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	13.00%						12.00%
Sales Revenue, Net [Member] \| Bosch [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage	11.00%						10.00%
Sales Revenue, Net [Member] \| Amazon [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage					12.00%
Sales Revenue, Net [Member] \| Canon [Member]
Summary of Significant Accounting Policies (Textual)
Concentration risk, percentage					15.00%			14.00%
Maximum [Member]
Summary of Significant Accounting Policies (Textual)
Equity ownership percentage	50.00%						50.00%
Warrant term							36 months
Minimum [Member]
Summary of Significant Accounting Policies (Textual)
Equity ownership percentage	20.00%						20.00%
Warrant term							12 months
SWEDEN [Member] \| Euro [Member]
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	$ 100						$ 100
SWEDEN [Member] \| Yen [Member]
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	10,000						10,000
KOREA [Member] \| Won [Member]
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	50,000						50,000
Taiwan [Member] \| Taiwan, New Dollars [Member]
Summary of Significant Accounting Policies (Textual)
Basic deposit coverage limits per owner and customer	$ 3,000						$ 3,000
SWEDEN [Member]
Summary of Significant Accounting Policies (Textual)
Noncontrolling interest owned by Pronode Technologies AB	51.00%						51.00%
Noncontrolling interest owned by Propoint AB	49.00%						49.00%