Financial Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current liabilities:
Secured note		$ 2,971
Total current liabilities		2,971	[1]
Non-current liabilities:
Secured term loan	9,503
Secured note		3,051
Bank revolving loan facility	4,000
Total non-current liabilities	13,503	3,051	[1]
Total	$ 13,503	$ 6,022

[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.