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Summary of Significant Accounting Policies (Details 2) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Property, Plant and Equipment [Line Items] |  |  |  |
Net license revenues | $ 1,213 | $ 1,597 | $ 4,622 | $ 5,681
Percentage of net license revenues | 100.00% | 100.00% | 100.00% | 100.00%
Net revenues | $ 1,310 | $ 1,923 | $ 5,032 | $ 6,174
Automotive [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Net license revenues | $ 400 | $ 248 | $ 1,336 | $ 1,151
Percentage of net license revenues | 31.00% | 13.00% | 27.00% | 19.00%
Consumer electronics [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Net license revenues | $ 813 | $ 1,349 | $ 3,286 | $ 4,530
Percentage of net license revenues | 62.00% | 70.00% | 65.00% | 73.00%
Sensor Modules [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Percentage of net license revenues | 7.00% | 2.00% | 7.00% | 3.00%
Net revenues | $ 95 | $ 39 | $ 368 | $ 176
Non Recurring Engineering [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Percentage of net license revenues | 0.00% | 15.00% | 1.00% | 5.00%
Net revenues | $ 2 | $ 287 | $ 42 | $ 317

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