Subsequent Events - Additional Information (Detail) (Grupo Ferrer Internacional, S.A. [Member], USD $)	1 Months Ended
	Mar. 31, 2012	Oct. 31, 2014 Subsequent Event [Member]
Subsequent Event [Line Items]
Aggregate purchase price	241,936	2,000,000
Common stock price, per share	$ 12.40	$ 4.00