Convertible Promissory Notes and Warrants - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended				1 Months Ended
	Dec. 31, 2009 Y	Mar. 31, 2012	Dec. 21, 2009	Feb. 28, 2012 Amended Debt Instrument	Dec. 21, 2009 Convertible Notes Payable	Feb. 28, 2012 Convertible Notes Payable Amended Debt Instrument	Dec. 31, 2009 Series A
Convertible Promissory Notes And Warrants [Line Items]
Issue of convertible promissory notes			$ 2,400,000
Warrants issued			935,040
Outstanding Series A Preferred Stock Prior to Conversion							480
Exchange Warrants exercise price	5.08
Convertible Promissory Notes, maturity date	3
Convertible Promissory Notes, interest rate	1.00%		1.00%			10.00%
Convertible Promissory note, number of common shares			450,281	450,281
Convertible Promissory note, conversion price	$ 5.33			$ 5.33
Convertible Promissory Notes, value allocated			2,150,448
Convertible Promissory Notes, face value					2,472,000
Convertible Promissory Notes, discount			321,552
Discount amortization charges		$ 27,225
Convertible Promissory Notes, expiring date						Jun. 30, 2013