Commitments and Contingencies - Additional Information (Detail) (USD $)	6 Months Ended		1 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Feb. 14, 2011 Chief Executive Officer	Jun. 30, 2012 Operating Leases	Jun. 30, 2012 Sublease	May 31, 2010 Sublease sqft
Loss Contingencies [Line Items]
Employment agreement, initial term			1 year
Employment agreement, automatic renewal period			1 year
Prior notice period not to automatically renew employment			90 days
Agreement termination period by the Company without cause			30 days
Agreement termination period by Mr. Bender with good reason			30 days
Agreement termination period by Mr. Bender with out good reason			90 days
Lease commitments, expiration date				Mar. 31, 2014	Mar. 31, 2013
Lease commitments, office space						6,000
Renewal option					1 year
Lease commitments, rent expense	$ 167,000	$ 161,000