Annual report pursuant to section 13 and 15(d)

Subsequent Events - Additional Information (Detail)

v2.4.0.8
Subsequent Events - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
 1 Months Ended 12 Months Ended 1 Months Ended 1 Months Ended
Jan. 31, 2013
Dec. 31, 2012
Jun. 30, 2012
Mar. 31, 2013
Mar. 31, 2013
Subsequent Event
Windsor Equity Agreement
Apr. 08, 2013
Subsequent Event
Equity Agreement One
Apr. 08, 2013
Subsequent Event
Equity Agreement One
Maximum
Apr. 12, 2013
Subsequent Event
Equity Agreement Two
Apr. 12, 2013
Subsequent Event
Equity Agreement Two
Maximum
Subsequent Event [Line Items]                  
Equity Financing Binding Term Sheets, closing date         May 23, 2013 Apr. 08, 2013   Apr. 12, 2013  
Issuance of common stock for cash         285,714 714,286   1,428,572  
Warrants issued 39,286 71,428 71,428   71,429 178,571   357,142  
Purchase price of common stock         $ 1,000,000 $ 500,000   $ 1,000,000  
Warrants exercise price 3.50 3.50 3.50   3.50 0.70 3.50 0.70 3.50
Warrant term 5 years 5 years 5 years   5 years 5 years   5 years  
Reduction of common stock           142,857   285,714  
Reduction of warrants           35,714   71,428  
Reverse stock split       The Company filed a Certificate of Amendment and Certificate of Correction of Certificate of Amendment of its Certificate of Incorporation (the "Certificate of Incorporation"), with the Secretary of State of the State of Delaware, to effect a 1-for-5 reverse stock split of our common stock (the "Reverse Stock Split").          
Reverse stock split ratio       0.2