Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Compensation	$ 2,183	$ 2,932
Restructuring costs	1,044
Marketing services	841	863
Distribution agreements and managed care costs	1,143	867
Professional fees	672	623
Franchise taxes	52	263
Travel expenses	153	144
Manufacturing overhead	132	46
Other accruals	162	193
Total accrued expenses and other current liabilities	$ 6,382	$ 5,931