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Summary of Significant Accounting Policies (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Sep. 30, 2020 USD ($) customers | Sep. 30, 2019 USD ($) | Dec. 31, 2019 USD ($) customers
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |
Basic deposit coverage limits per owner and customer | $ 250 |  |  |  |  |  |  | $ 250 |  |
Allowance for doubtful accounts | 82 |  |  | $ 85 |  |  |  | 82 |  | $ 85
Costs capitalized in projects in process |  |  |  |  |  |  |  | 11 |  | 8
Foreign currency translation adjustments | (228) | $ 64 | $ (87) | 117 | $ (145) | $ 26 | $ (181) | (251) | $ (300) |
Foreign currency transactions, general and administrative expenses | $ (135) |  |  |  | $ 56 |  |  | 149 | $ 170 |
Investment in joint venture |  |  |  |  |  |  |  | $ 3 |  |
Equity ownership percentage | 50.00% |  |  |  |  |  |  | 50.00% |  |
Concentration risk, percentage | 100.00% |  |  |  | 100.00% |  |  | 100.00% | 100.00% |
Advertising costs | $ 27 |  |  |  | $ 18 |  |  | $ 43 | $ 66 |
Noncontrolling interest, description |  |  |  |  |  |  |  | Noncontrolling interests' partners have less than 50% share of voting rights at any one of the subsidiary level companies. |  |
Recognized of revenues | 7 |  |  |  |  |  |  | $ 39 |  |
Inventory reserve amount | 700 |  |  | $ 800 |  |  |  | $ 700 |  | $ 800
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 950,000 Krona per customer and covers deposits in all types of accounts. For bank accounts of the category held by Neonode, the Japanese government provides full insurance coverage. 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. |  |
Initial drawdown | $ 1,000 |  |  |  |  |  |  | $ 1,000 |  |
Product backlog amount |  |  |  |  |  |  |  |  | $ 0 |
Product backlog, description |  |  |  |  |  |  |  | Our sensor module product backlog at September 30, 2020 was approximately $495.000. The product backlog includes orders confirmed for products planned to be shipped within the next 3 quarters to 3 customers. Our cycle time between order and shipment is generally short and customers occasionally change delivery schedules. As a result, we do not believe that our product backlog, as of any particular date, is necessarily indicative of actual product revenue for any future period. |  |
AirBar [Member] |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |
Inventory description |  |  |  |  |  |  |  | To protect our manufacturing partner from losses in relation to AirBar production, we agreed to secure the value of the inventory with a bank guarantee covering the production of 20,000 AirBars. Excess inventory was purchased from our manufacturing partner in 2019 and has been fully reserved. |  |
Accounts Receivable [Member] |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  |  |  |  | 75.00% |  | 72.00%
No. of customers | customers |  |  |  |  |  |  |  | 4 |  | 3
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 Company [Member] |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage | 31.00% |  |  |  | 34.00% |  |  | 32.00% | 39.00% |
Sales Revenue, Net [Member] | LG Electronics Inc. [Member] |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage | 16.00% |  |  |  |  |  |  |  |  |
Sales Revenue, Net [Member] | Seiko Epson Corporation [Member] |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage | 13.00% |  |  |  | 18.00% |  |  | 19.00% | 15.00% |
Sales Revenue, Net [Member] | Alpine Electronics, Inc [Member] |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |
Concentration risk, percentage | 12.00% |  |  |  | 20.00% |  |  | 15.00% | 14.00% |
Sweden [Member] | Pronode Technologies AB [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% |  |

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