Short-Term Borrowings (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jun. 17, 2020	Dec. 31, 2020	Dec. 29, 2020	Aug. 07, 2020
Short-Term Borrowings (Details) [Line Items]
Total amount of credit		$ 563,000
Description of deductible interest		There was a 1.25% annual non-deductible interest and a credit fee of 0.2% from the seventh month of the granted credit.
Interest Expense		$ 2,000
Shares issued			37,288	517
Directors [Member]
Short-Term Borrowings (Details) [Line Items]
Description of loan agreements	the Company entered into the Loan Agreements with two entities beneficially owned respectively by each of Ulf Rosberg and Peter Lindell, directors of Neonode (each, a “Director”). Pursuant to the Loan Agreements, each entity beneficially owned by the Director made approximately $1.7 million in U.S. dollars principal amount available to the Company. The Company made an initial drawdown of an aggregate of approximately $1.0 million under the Loan Agreements.
Loan Agreement [Member]
Short-Term Borrowings (Details) [Line Items]
Description of loan agreements	Each of the Loan Agreements provided for a credit fee of 0.75% per annum, calculated on a daily basis from the date of the Loan Agreement, and any outstanding amount incurred interest at a fixed rate of 3.25% per annum, calculated on a daily basis from the drawdown date. Drawdowns under the Loan Agreements became unavailable upon the earlier to occur of the execution of a capital raise by Neonode or December 31, 2020. Upon completion of a capital raise before December 31, 2020, any outstanding amount under the Loan Agreements, including any credit fee and interest, became payable as soon as practicably possible after such capital raise. If a capital raise was not completed by December 31, 2020, or if the funds from the capital raise were insufficient to repay the full outstanding amount under the Loan Agreements, then the outstanding amount under the Loan Agreements, including any credit fee and interest, would have become due and payable on February 28, 2021.