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Deferred Revenues (Details)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2016
USD ($)
Customers
Dec. 31, 2015
USD ($)
Customers
Deferred Revenues (Textual)    
Deferred license fee revenue $ 2,212 $ 1,475
Prepayments for Future License Fees [Member]    
Deferred Revenues (Textual)    
Deferred license fee revenue $ 2,100 $ 1,100
Number of customer | Customers 4 2
Deferred Engineering Development Fees [Member]    
Deferred Revenues (Textual)    
Deferred license fee revenue $ 100 $ 400
Number of customer | Customers 4 1