Goodwill and Intangible Assets Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired		$ 1,500
Amortization	$ (230)	(87)
Gross Carrying Value	1,500
Accumulated Amortization	(317)
Total finite-lived intangible assets, net	$ 1,183	1,413	$ 0
Weighted-Average Remaining Useful Life (in years)	5 years 1 month 17 days
Amortization of Intangible Assets	$ 123	46
Amortization of intangible assets included in operating expenses	107	41
Amortization of Intangible Assets	230	$ 87
Developed Technology Rights [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets	800
Gross Carrying Value	800
Accumulated Amortization	(169)
Total finite-lived intangible assets, net	$ 631
Weighted-Average Remaining Useful Life (in years)	5 years 1 month 17 days
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets	$ 500
Gross Carrying Value	500
Accumulated Amortization	(106)
Total finite-lived intangible assets, net	$ 394
Weighted-Average Remaining Useful Life (in years)	5 years 1 month 17 days
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets	$ 200
Gross Carrying Value	200
Accumulated Amortization	(42)
Total finite-lived intangible assets, net	$ 158
Weighted-Average Remaining Useful Life (in years)	5 years 1 month 17 days