Quarterly report pursuant to sections 13 or 15(d)

Debt - Additional Information (Detail)

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Debt - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 12 Months Ended
Jun. 21, 2010
Jun. 30, 2012
Mar. 31, 2012
Debt Instrument [Line Items]      
Warrant, exercise price per share   0.70  
Senior Secured Convertible Notes due June 21, 2013
      
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   0.25  
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 813,000 0 1,648,000
Discount amortized as interest and financing costs 207,000    
Shares of common stock, issuable up on conversion     19,344,792
Amount by which if-converted value exceeds the principal   11,607,000  
Accrued interest   145,000  
Senior Secured Convertible Notes due June 21, 2013 | Maximum
      
Debt Instrument [Line Items]      
Discount on notes $ 2,500,000