Subsequent Events - Additional Information (Detail) (Subsequent Events [Member], USD $)	0 Months Ended
	Oct. 23, 2014
Subsequent Events [Member]
Subsequent Event [Line Items]
Notification from NASDAQ	On October 23, 2014, we received a written notification from the NASDAQ Stock Market LLC notifying the Company that it fails to comply with Nasdaq's Marketplace Rule 5450(a)(1) (the "Rule") because the bid price for the Company's common stock over the last 30 consecutive business days has closed below the minimum $1.00 per share requirement for continued listing. The notification has no immediate effect on the listing of the Company's common stock. In accordance with NASDAQ's Marketplace Rule 5810(c)(3)(A), the Company has a period of 180 calendar days, or until April 21, 2015, to regain compliance with the Rule. If at any time before April 21, 2015, the bid price of the Company's common stock closes at or above $1.00 per share for a minimum of 10 consecutive business days, NASDAQ will provide written notification that the Company has achieved compliance with the Rule.
Minimum bid price of common stock per share	$ 1.00
Last date for compliance of minimum bid price requirement	Apr. 21, 2015
Minimum bid price requirement, additional grace period	180 days