Activity Related to Convertible Note and Secured Notes (Detail) (USD $)			12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Secured Debt	Dec. 31, 2012 Convertible Notes
Disclosure Activity Related To Convertible Note [Line Items]
Proceeds received on issuance of notes in 2012			$ 1,000,000	$ 500,000
Discount allocated to warrant			(212,598)	(46,716)
Convertible note after discount			787,402	453,284
Accretion of discount to interest expense			30,000	11,679
Convertible note at December 31, 2012			817,402	464,963
Total allocated to additional paid in capital			212,598	46,716
Unamortized discount at December 31, 2012	28,912	85,720	182,598	35,037
Contractual interest exp for nine months ended at Dec 31, 2012			$ 40,000	$ 300,000
Effective interest rate on convertible note			19.10%	17.30%