Debt - Maturities of Outstanding Debt (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	[1]
Debt Disclosure [Abstract]
2016	$ 739
2017	582
2018	617
2019	399
Total	2,337
Current portion	(881)	$ (1,384)
Discount on long-term debt	(35)
Long-term debt, less current portion	$ 1,421	$ 1,557

[1] Derived from our audited consolidated financial statements as of December 31, 2015.