Other Assets - Schedule of Other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred financing costs	$ 327	$ 456
Deposits	197	195
Prepaid royalty	244	245
Other assets	818	819
Total other assets	$ 1,586	$ 1,715