Inventories - (Summary of the Components of Inventories) (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Inventory [Line Items]
Raw materials	$ 2,144	$ 1,748
Work in progress	151	137
Finished Goods	2,651	2,068
Inventory, Net	$ 4,946	$ 3,953	[1]

[1] Derived from audited information