Organization and Business - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
	Jun. 29, 2016	Jun. 30, 2015	Jun. 30, 2016	Dec. 31, 2015	Dec. 31, 2014
Organization and Nature of Operations [Line Items]
Cash		$ 11,080	$ 4,224	$ 8,854	$ 13,859
Stock issued during period, value, new issues	$ 10,000
Warrant
Organization and Nature of Operations [Line Items]
Stock issued during period, value, new issues		$ 25,000