Subsequent Events - Additional Information (Detail)	1 Months Ended			1 Months Ended
	Sep. 30, 2013	Jul. 16, 2013	Dec. 31, 2012	Oct. 15, 2013 Subsequent Event
Subsequent Event [Line Items]
Common stock, shares authorized	66,500,000	665,000,000	66,500,000	66,500,000
Common stock, shares issued	12,213,219		12,074,314	12,213,219
Common stock, shares outstanding	12,213,219		12,074,314	12,213,219
Condition for reverse stock split				Effective October 15, 2013, every ten shares of Old Common Stock were exchanged for one share of New Common Stock.
Reverse stock split ratio	0.1			0.1
Preferred stock, shares authorized	10,000,000		10,000,000	10,000,000