Other Current Liabilities - Schedule of Other Current Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other Liabilities Current [Abstract]
Accrued legal	$ 780	$ 410
Income taxes payable	41	30
Deferred income taxes	0	97
Other current liabilities	832	582
Total other current liabilities	$ 1,653	$ 1,119	[1]

[1] See Note 1 "Significant Accounting Policies - Intangible Assets" of Notes to Consolidated Financial Statements.