Subsequent Events - Additional Information (Detail) - USD ($) $ in Millions		1 Months Ended	6 Months Ended
	Jul. 05, 2016	Jun. 29, 2016	Jun. 30, 2015
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues		5,882,352
Stock Issued During Period, Value, New Issues		$ 10.0
Warrant [Member]
Subsequent Event [Line Items]
Stock Issued During Period, Shares, New Issues		2,941,176
Stock Issued During Period, Value, New Issues			$ 25.0
Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from Issuance Initial Public Offering	$ 9.3