Other Assets - Schedule of Other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred financing costs	$ 391	$ 456
Deposits	196	195
Prepaid royalty	245	245
Other assets	820	819
Total other assets	$ 1,652	$ 1,715