Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands		Preferred Stock		Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total Neonode Inc. Stockholders’ Equity	Noncontrolling Interests	Total
Balance at Dec. 31, 2019				$ 9	$ 197,543	$ (639)	$ (190,520)	$ 6,393	$ (2,546)	$ 3,847
Balance (in Shares) at Dec. 31, 2019			[1]	9,171
Foreign currency translation adjustment						(87)		(87)		(87)
Net loss							(1,010)	(1,010)	(102)	(1,112)
Balance at Mar. 31, 2020				$ 9	197,543	(726)	(191,530)	5,296	(2,648)	2,648
Balance (in Shares) at Mar. 31, 2020			[1]	9,171
Foreign currency translation adjustment						64		64		64
Net loss							(1,612)	(1,612)	(154)	(1,766)
Balance at Jun. 30, 2020				$ 9	197,543	(662)	(193,142)	3,748	(2,802)	946
Balance (in Shares) at Jun. 30, 2020			[1]	9,171
Foreign currency translation adjustment						(228)		(228)		(228)
Issuance of shares for cash, net of offering costs		$ 3,932		$ 1	9,597			13,530		13,530
Issuance of shares for cash, net of offering costs (in Shares)		3,932	[1]	1,612
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest		$ 517			(1)			516		516
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest (in Shares)	[1]	517
Conversion of Series C-1 and C-2 Preferred Stock to common stock		$ (4,449)		$ 1	4,448
Conversion of Series C-1 and C-2 Preferred Stock to common stock (in Shares)		(4,449)	[1]	684
Preferred dividends							(33)	(33)		(33)
Net loss							(1,638)	(1,638)	(110)	(1,748)
Balance at Sep. 30, 2020				$ 11	211,587	(890)	(194,813)	15,895	(2,912)	12,983
Balance (in Shares) at Sep. 30, 2020			[1]	11,467
Stock-based compensation				$ 1	76			77		77
Stock-based compensation (in Shares)			[1]	37
Foreign currency translation adjustment						486		486		486
Net loss							(1,345)	(1,345)	(311)	(1,656)
Balance at Dec. 31, 2020				$ 12	211,663	(404)	(196,158)	15,113	(3,223)	11,890
Balance (in Shares) at Dec. 31, 2020			[1]	11,504
Stock-based compensation					23			23		23
Foreign currency translation adjustment						(166)		(166)		(166)
Net loss							(1,568)	(1,568)	(102)	(1,670)
Balance at Mar. 31, 2021				$ 12	211,686	(570)	(197,726)	13,402	(3,325)	10,077
Balance (in Shares) at Mar. 31, 2021			[1]	11,504
Stock-based compensation					22			22		22
Foreign currency translation adjustment						56		56		56
Net loss							(1,657)	(1,657)	(179)	(1,836)
Balance at Jun. 30, 2021				$ 12	211,708	(514)	(199,383)	11,823	(3,504)	8,319
Balance (in Shares) at Jun. 30, 2021				11,504
Stock-based compensation					46			46		46
Stock-based compensation (in Shares)				13
Foreign currency translation adjustment						(37)		(37)		(37)
Net loss							(1,721)	(1,721)	(135)	(1,856)
Balance at Sep. 30, 2021				$ 12	212,347	$ (551)	$ (201,104)	10,704	$ (3,639)	7,065
Balance (in Shares) at Sep. 30, 2021				11,611
Issuance of common stock under the ATM, net					$ 593			$ 593		$ 593
Issuance of common stock under the ATM, net (in Shares)				94

[1] Preferred Shares Issued per series can be found under the equity footnote (see Note 3).