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Deferred Revenue (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) Customers | Dec. 31, 2015 USD ($) Customers
Deferred Revenue (Textual) |  |
Deferred license fee revenue | $ 1,921 | $ 1,475
Prepayments from Future License Fees [Member] |  |
Deferred Revenue (Textual) |  |
Deferred license fee revenue | $ 1,800 | $ 1,100
Number of customer | Customers | 4 | 2
Deferred Engineering Development Fees [Member] |  |
Deferred Revenue (Textual) |  |
Deferred license fee revenue |  | $ 400
Number of customer | Customers |  | 1
AirBar sales [Member] |  |
Deferred Revenue (Textual) |  |
Deferred license fee revenue | $ 100 |

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