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Summary of Significant Accounting Policies (Details) | 12 Months Ended
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Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Voting rights percentage | 50.00% |
Insurance coverage, description | For deposits held with financial institutions in the U.S., the U.S. Federal Deposit Insurance Corporation, provides basic deposit coverage with limits up to $250,000 per owner. The Swedish government provides insurance coverage up to 100,000 Euro per customer and covers deposits in all types of accounts. The Japanese government provides insurance coverage up to 10,000,000 Yen per customer. The Korea Deposit Insurance Corporation provides insurance coverage up to 50,000,000 Won per customer. The Central Deposit Insurance Corporation in Taiwan provides insurance coverage up to 3,000,000 Taiwan Dollar per customer. At times, deposits held with financial institutions may exceed the amount of insurance provided. |
Allowance for doubtful accounts | $ 79,000 | $ 79,000
General and administrative expenses | 66,000 | 252,000
Foreign currency translation gains (losses) | $ 4,000 | $ 235,000
Number of customers | 4 | 4
Accounts receivable percentage | 76.00% | 62.00%
Revenues percentage | 10.00% | 10.00%
Reduction of our accounts receivable and revenue | $ 69,000 | $ 78,000
Accrued expense and cost of sales | 36,000 | 25,000
Recorded no losses |  | 47,000
Contracted revenue not yet recognized | $ 106,000 |
Recognized revenues percent | 100.00% |
Recognized revenues | $ 41,000 | 39,000
Advertising costs | $ 208,000 | 70,000
Outstanding voting shares percentage | 50.00% |
Neonode Technologies AB [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Majority owned by pronode technologies AB | 51.00% |
Remaining Percentage of pronode technologies AB | 49.00% |
AirBar [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Inventory reserve amount | $ 800,000 | $ 900,000
TSM [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Inventory reserve amount | $ 200,000 |
Hewlett-Packard Company [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Revenues percentage | 32.00% | 27.00%
Seiko Epson [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Revenues percentage | 18.00% |
LG [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Revenues percentage | 13.00% |
Epson [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Revenues percentage |  | 19.00%
Alpine [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Revenues percentage |  | 11.00%
United States [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Net assets | $ 17,198,000 | $ 6,923,000
Europe [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Net assets | 2,611,000 | 4,903,000
Asia [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Net assets | $ 28,000 | $ 64,000

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