Property and Equipment, Net (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Property Plant And Equipment [Line Items]
Leasehold improvements	$ 1,232	$ 1,236
Furniture, fixture and office equipment	4,363	4,236
Machinery	6,876	6,843
Software	2,375	2,094
Total	14,846	14,409
Accumulated depreciation	(9,280)	(8,521)
Property and equipment, net	$ 5,566	$ 5,888	[1]

[1] The condensed consolidated balance sheet has been derived from the audited consolidated financial statements at December 31, 2013 but does not include all the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.