Annual report pursuant to Section 13 and 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
1 Months Ended 1 Months Ended
Mar. 31, 2014
May 31, 2013
Mar. 31, 2013
Dec. 29, 2011
Taja Convertible Note
Mar. 19, 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
Sep. 04, 2013
New Convertible Note
Aug. 14, 2013
New Convertible Note
Aug. 14, 2013
June 2010
Aug. 14, 2013
December 2011
Non Cash Convertible Debt Related Expense [Line Items]                        
Principal amount of note, stripped out       $ 3,000                
Principal amount of note       500                
Accrued interest       562                
Total amount of debt       1,062                
Issuance of warrants related to convertible debt       400             80,000 120,000
Warrant, exercise price per share   3.50   1.25                
Percentage of warrant coverage       25.00%                
Warrant term       5 years           5 years    
Warrant vesting period from issue date       1 year           1 year    
Conversion price           $ 3.50       $ 4.00    
Conversion of the note, ownership percentage by holder             4.90%          
Net proceeds               10,000        
Shares of common stock issued up on conversion         520,000         285,714    
Convertible note, amount converted         1,820         1,000    
Excess face value charge as interest expense                   235    
Discount on Notes 762   159             72    
Repayment of remaining principal and interest                 $ 1,542