Acquisitions (Details 1) - AC2 Solutions, Inc. $ in Thousands	Jan. 13, 2016 USD ($)
Acquired Intangible Assets [Line Items]
Total intangible assets	$ 6,710
Customer relationships
Acquired Intangible Assets [Line Items]
Total intangible assets	$ 710
Economic Useful Life (in years)	8 years
Technology
Acquired Intangible Assets [Line Items]
Total intangible assets	$ 321
Economic Useful Life (in years)	5 years
In-process research and development
Acquired Intangible Assets [Line Items]
Total intangible assets	$ 3,014
Patents
Acquired Intangible Assets [Line Items]
Total intangible assets	$ 2,641
Economic Useful Life (in years)	12 years
Non-competition agreement
Acquired Intangible Assets [Line Items]
Total intangible assets	$ 24
Economic Useful Life (in years)	2 years