Commitments and Contingencies (Detail) (USD $)	Dec. 31, 2012
2013	$ 333,191
2014	87,516
Thereafter	1,056
Operating Leases, Future Minimum Payments Due	421,763
Master Space Lease [Member]
2013	472,623
2014	118,749
Thereafter	0
Operating Leases, Future Minimum Payments Due	591,372
Sublease [Member]
2013	(145,768)
2014	(37,569)
Thereafter	0
Operating Leases, Future Minimum Payments Due	(188,337)
Net Master Space Lease [Member]
2013	326,855
2014	81,180
Thereafter	0
Operating Leases, Future Minimum Payments Due	408,035
Office Equipment [Member]
2013	6,336
2014	6,336
Thereafter	1,056
Operating Leases, Future Minimum Payments Due	$ 13,728