Quarterly report pursuant to sections 13 or 15(d)

Debt - Additional Information (Detail)

v2.4.0.6
Debt - Additional Information (Detail) (USD $)
 1 Months Ended 6 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Jun. 21, 2010
Senior Secured Convertible Notes due June 21, 2013
Sep. 30, 2012
Senior Secured Convertible Notes due June 21, 2013
Mar. 31, 2012
Senior Secured Convertible Notes due June 21, 2013
Jun. 21, 2010
Senior Secured Convertible Notes due June 21, 2013
Maximum
Debt Instrument [Line Items]              
Principal amount of note       $ 2,500,000 $ 2,902,000    
Debt Instrument Maturity Period       3 years      
Interest rate of senior secured note       10.00%      
Conversion Price       $ 0.15 $ 0.15    
Warrant, exercise price per share   0.70     0.25    
Debt conversion description         For each $1 of New Senior Secured Notes purchased, the purchaser received a Warrant to purchase 3.33 shares of common stock of the Company    
Warrant term         5 years    
Convertible Senior Secured Notes purchased         1    
Warrant issued to purchase common stock         3.33    
Fair value of convertible note warrant       1,678,000      
Expected Life       5 years      
Risk Free Interest Rate       2.05%      
Dividend Yield       0.00%      
Volatility Rate       54.62%      
Value of the beneficial conversion feature       5,833,000      
Conversion Value Of Notes       2,500,000      
Discount on notes 242,000   0   0 1,648,000 2,500,000
Discount amortized as interest and financing costs         418,000    
Short term debt, discount 603,000   0   603,000 0  
Shares of common stock, issuable up on conversion         19,344,792    
Amount by which if-converted value exceeds the principal         12,961,000    
Accrued interest         221,000    
Total consideration payable in cash and shares of stock, gross $ 1,000,000