| Cover | May 10, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | May 10, 2022 |
| Entity File Number | 1-35526 |
| Entity Registrant Name | NEONODE INC. |
| Entity Central Index Key | 0000087050 |
| Entity Tax Identification Number | 94-1517641 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | Karlavägen 100 |
| Entity Address, City or Town | Stockholm |
| Entity Address, Country | SE |
| Entity Address, Postal Zip Code | 115 26 |
| City Area Code | +46 (0 |
| Local Phone Number | 8 667 17 17 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.001 per share |
| Trading Symbol | NEON |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
