Quarterly report pursuant to sections 13 or 15(d)

Convertible Notes - Additional Information (Detail)

v2.4.0.8
Convertible Notes - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 1 Months Ended 3 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
May 31, 2013
Mar. 31, 2013
Mar. 19, 2012
Amended Taja Convertible Note
Jun. 30, 2013
Amended Taja Convertible Note
Mar. 31, 2012
Amended Taja Convertible Note
Mar. 01, 2012
Amended Taja Convertible Note
Mar. 01, 2012
Amended Taja Convertible Note
Maximum
Mar. 01, 2012
Amended Taja Convertible Note
Minimum
Mar. 31, 2012
Coverage Warrant
Mar. 31, 2012
Incentive Warrant
Mar. 31, 2012
Conversion Warrants
Dec. 29, 2011
Taja Convertible Note
Mar. 31, 2012
Taja Convertible Note
Non Cash Convertible Debt Related Expense [Line Items]                              
Principal amount of note, stripped out                           $ 3,000  
Principal amount of note           1,232             3,000 500  
Accrued interest                           562  
Total amount of debt                           1,062  
Warrant issued as consideration for amending the note                           400  
Warrant, exercise price per share     3.50                     1.25  
Percentage of warrant coverage                           25.00%  
Warrant Term                           5 years  
Warrant vesting period from issue date                           1 year  
Gain (loss) on extinguishment of debt (3)           1,346               1,459
Conversion price           $ 3.50   $ 3.5              
Conversion of the note, ownership percentage by holder                 4.90%            
Net proceeds                   10,000          
Fair value of embedded conversion feature of convertible note             2,250                
Expected Life             1 year           5 years    
Risk free interest rate             0.17%           0.84%    
Dividend yield             0.00%           0.00%    
Volatility             175.00%           175.00%    
Fair value of convertible note warrant                     750 1,459      
Excess face value charge as interest expense                         837    
Shares of common stock issued up on conversion         2,600                    
Convertible note, amount converted         1,820                    
Interest expense of related to the amortization of the debt discount 1,267 354       146                  
Discount on Notes 159     159   393                  
Shares of common stock, issuable up on conversion           352,875                  
Amount by which if-converted value exceeds the principal           $ 334