Income Taxes - Additional Information (Detail) (USD $)				12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Sep. 30, 2013 Federal	Sep. 30, 2013 New York	Sep. 30, 2013 Connecticut	Sep. 30, 2013 Pennsylvania	Sep. 30, 2013 New Jersey	Dec. 31, 2012 Minimum	Dec. 31, 2012 Maximum
Income Tax Disclosure [Abstract]
Net operating loss carryforward		$ 10,600,000
Annual limitation of federal NOLs									1,000,000	2,200,000
Expiration date of net operating loss carryforward									Dec. 31, 2018	Dec. 31, 2024
Unrecognized income tax benefit	784,000		700,000
Unrecognized income tax benefit related accrued interest and penalties	$ 100,000
Number of years for examination				Four	Four	Four	Four	Five