Goodwill and Intangible Assets, Net (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Schedule of Goodwill and Intangible Assets [Line Items]
Cost	$ 3,469		$ 3,469		$ 3,469
Accumulated Amortization	(1,959)		(1,959)		(1,763)
Net Book Value	1,510		1,510		1,706
Intangible assets not subject to amortization	295		295		295
Total intangible assets, net	1,805		1,805		2,001
Amortization of intangible assets	100	$ 100	200	$ 200
Goodwill	317		$ 317		317
Existing technology
Schedule of Goodwill and Intangible Assets [Line Items]
Estimated Lives			7 years
Cost	1,910		$ 1,910		1,910
Accumulated Amortization	(1,320)		(1,320)		(1,183)
Net Book Value	590		$ 590		727
Patent license
Schedule of Goodwill and Intangible Assets [Line Items]
Estimated Lives			14 years
Cost	1,388		$ 1,388		1,388
Accumulated Amortization	(472)		(472)		(422)
Net Book Value	916		$ 916		966
Non-competition agreements and other
Schedule of Goodwill and Intangible Assets [Line Items]
Estimated Lives			3 years
Cost	171		$ 171		171
Accumulated Amortization	(167)		(167)		(158)
Net Book Value	$ 4		$ 4		$ 13