Income Taxes - Reconciliation of Income Tax Computed at U.S. Federal Statutory Rate to Income Tax Expense (Benefit) (Detail) (USD $)	3 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Tax (benefit) expense at U.S. statutory rate, Amount			$ 1,492,000	$ (3,399,000)	$ (766,000)
State and local tax expense (benefit), net of Federal impact, Amount			86,000	(96,000)	(61,000)
Impact of state and local tax rate change net of Federal impact, Amount			110,000	6,000	67,000
Cost (benefit) attributable to valuation allowance, net, Amount			(150,000)	3,671,000	754,000
Non-deductible items, Amount			9,000	5,000	6,000
Benefit attributable to reduction in allowance against certain deferred tax assets, Amount			(15,217,000)	(5,614,000)	(4,075,000)
Income tax (benefit)	$ (14,751,000)	$ (5,427,000)	$ (13,670,069)	$ (5,427,000)	$ (4,075,000)
Tax (benefit) expense at U.S. statutory rate, Percent			35.00%	(35.00%)	(35.00%)
State and local tax expense (benefit), net of Federal impact, Percent			2.01%	(0.99%)	(2.80%)
Impact of state and local tax rate change net of Federal impact, percent			2.58%	0.06%	3.08%
Cost (benefit) attributable to valuation allowance, net, Percent			(3.52%)	37.80%	34.44%
Non-deductible items, Percent			0.21%	0.05%	0.28%
Benefit attributable to reduction in allowance against certain deferred tax assets, Percent			(356.94%)	(57.81%)	(186.19%)
Income tax expense (benefit), Percent			(320.66%)	(55.89%)	(186.19%)