Other Assets - Schedule of Other Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deposits	$ 937	$ 189
Prepaid royalty	234	242
Other assets	274	431
Total other assets	$ 1,445	$ 862