Income Tax Provision (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal	$ 0	$ 0	$ 0
State and local	28,959	34,514	31,495
Foreign	(80,956)	382,604	2,219
Total current provision (benefit)	(51,997)	417,118	33,714
Deferred:
Federal	0	0	0
State and local	0	0	0
Foreign	(674,177)	(815,562)	0
Total deferred provision (benefit)	(674,177)	(815,562)	0
Total income tax provision (benefit)	$ (726,174)	$ (398,444)	$ 33,714