Stockholders' Equity - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended	1 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Feb. 28, 2013 Five Employees [Member]	Feb. 28, 2013 Seven Employees and Five Outside Board Members [Member]	May 31, 2013 Outside Board Member [Member]	Feb. 28, 2013 Other Than Performance Shares [Member] Five Employees [Member]	Feb. 28, 2013 Performance Shares [Member] Five Employees [Member]	Feb. 28, 2013 Performance Shares [Member] Seven Employees and Five Outside Board Members [Member]
Disclosure Stockholders Equity Additional Information Detail [Line Items]
Common stock granted under the long term incentive bonus program						42,000			36,000	6,000
Share-based compensation, option vesting period							3 years	3 years	3 years	3 years
Common stock options granted, exercise price						$ 2.50	$ 2.50	$ 3.00
Compensation expense amortization period						3 years
Stock options granted under the long term incentive bonus program			446,000		1,014,000		346,000	100,000			12,000
Expected term							5 years	5 years
Total share-based expense	$ 283,892	$ 517,370	$ 919,755	$ 1,533,855