Subsequent Events - Additional Information (Detail) - $ / shares			6 Months Ended
	Jul. 26, 2016	Jan. 25, 2016	Jun. 30, 2016
Subsequent Event [Line Items]
Regain compliance with listing qualifications period end date		Jul. 25, 2016
Common stock minimum bid price		$ 1.00
Consecutive business period to maintain minimum bid closing price		30 days
Initial period allowed to regain compliance with listing qualifications		180 days
NASDAQ listing minimum bid price requirement description			On July 26, 2016, The NASDAQ Stock Market (“NASDAQ”) granted the Company an additional 180 calendar days, or until January 23, 2017, to regain compliance with the $1.00 per share minimum required for continued listing on The NASDAQ Capital Market pursuant to NASDAQ Marketplace Rule 5550(a)(2) (the “Minimum Bid Price Rule”). As previously reported, on January 25, 2016, the Company received a notification letter (the “Notice”) from NASDAQ advising the Company that for 30 consecutive trading days preceding the date of the Notice, the bid price of the Company’s common stock had closed below the $1.00 per share minimum required for continued listing on The NASDAQ Capital Market pursuant to the Minimum Bid Price Rule. The Company was unable to regain compliance with the Minimum Bid Price Rule by July 25, 2016. The Company was provided 180 calendar days, or until July 25, 2016, to regain compliance with the Minimum Bid Price Rule.
Subsequent Event
Subsequent Event [Line Items]
Additional period allowed to regain compliance with listing qualifications	180 days
Regain compliance with listing qualifications period end date	Jan. 23, 2017
Common stock minimum bid price	$ 1.00