Summary of Significant Accounting Policies (Details 5) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Summary of Significant Accounting Policies [Line Items]
Deferred license fees	$ 553	$ 1,248
Deferred license fees [Member]
Summary of Significant Accounting Policies [Line Items]
Deferred license fees	441	1,089
Deferred AirBar revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Deferred license fees	92	137
Deferred sensor modules revenues [Member]
Summary of Significant Accounting Policies [Line Items]
Deferred license fees	$ 20	$ 22