Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Inventory [Line Items]
Raw materials
Work in process	885	3,170
Finished goods	969	234
Total	1,854	3,404
Current portion	(969)	(419)
Non-current portion included in "intangible and other assets, net"	885	2,985
Total	$ 1,854	$ 3,404