Goodwill and Other Intangible Assets (Detail 1) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Amortized intangible assets
Amortized intangible assets, gross carrying amount	$ 11,972	$ 12,523
Amortized intangible assets, accumulated amortization	(4,945)	(4,682)
Licensing Agreements [Member]
Amortized intangible assets
Amortized intangible assets, gross carrying amount	783	818
Amortized intangible assets, accumulated amortization	(783)	(818)
Technology [Member]
Amortized intangible assets
Amortized intangible assets, gross carrying amount	2,500	2,500
Amortized intangible assets, accumulated amortization	(268)	(143)
Customer Relationships [Member]
Amortized intangible assets
Amortized intangible assets, gross carrying amount	2,442	2,477
Amortized intangible assets, accumulated amortization	(360)	(195)
Patents [Member]
Amortized intangible assets
Amortized intangible assets, gross carrying amount	5,627	6,037
Amortized intangible assets, accumulated amortization	(3,279)	(3,274)
Other [Member]
Amortized intangible assets
Amortized intangible assets, gross carrying amount	620	691
Amortized intangible assets, accumulated amortization	$ (255)	$ (252)